CVE-2023-52434

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2023-52434", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-20T12:30:33.290Z", "datePublished": "2024-02-20T18:04:44.006Z", "dateUpdated": "2026-08-05T09:09:53.429Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:09:53.429Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n BUG: unable to handle page fault for address: ffff8881178d8cc3\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 4a01067 P4D 4a01067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? __die+0x23/0x70\n ? page_fault_oops+0x181/0x480\n ? search_module_extables+0x19/0x60\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? exc_page_fault+0x1b6/0x1c0\n ? asm_exc_page_fault+0x26/0x30\n ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n SMB2_open+0x38d/0x5f0 [cifs]\n ? smb2_is_path_accessible+0x138/0x260 [cifs]\n smb2_is_path_accessible+0x138/0x260 [cifs]\n cifs_is_path_remote+0x8d/0x230 [cifs]\n cifs_mount+0x7e/0x350 [cifs]\n cifs_smb3_do_mount+0x128/0x780 [cifs]\n smb3_get_tree+0xd9/0x290 [cifs]\n vfs_get_tree+0x2c/0x100\n ? capable+0x37/0x70\n path_mount+0x2d7/0xb80\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? _raw_spin_unlock_irqrestore+0x44/0x60\n __x64_sys_mount+0x11a/0x150\n do_syscall_64+0x47/0xf0\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n RIP: 0033:0x7f8737657b1e"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - Crafted create-context offsets/lengths are delivered in an SMB2 CREATE response from a remote SMB server over TCP; a malicious or MitM server triggers the parser once the victim mounts or opens files on the share.\nAC:L - The attacker fully controls CreateContextsOffset/Length and each context's NameOffset/DataOffset/Next fields in a single response and can reliably cause the out-of-bounds dereference with no race or condition outside their control.\nPR:N - The attacker needs no privileges on the victim host\u2014only to operate or impersonate the SMB server endpoint; session credentials are victim-side interaction, not attacker privilege on the client.\nUI:R - Exploitation requires the victim to mount/connect to the attacker-controlled share or access a path that issues SMB2 CREATE (mount.cifs, open, path checks); the server cannot reach smb2_parse_contexts unsolicited.\nS:U - Impact is confined to the kernel SMB client on the same host security authority; this is not a VM escape, IOMMU bypass, or sandbox boundary crossing.\nC:H - Unvalidated NameOffset/DataOffset/Next and CreateContextsOffset enable unbounded out-of-bounds reads of adjacent kernel memory; parsed values (e.g. lease_key via parse_lease_buf, IndexNumber) can be returned to the server or userspace, so the over-read is not limited to a few bytes.\nI:N - The bug is an out-of-bounds read into designated parse outputs, not an arbitrary write or control-flow primitive; a malicious server already controls in-bounds create-context contents.\nA:H - The demonstrated page-fault oops in smb2_parse_contexts (and remaining underflow walking Next) can crash the kernel, and a malicious server can trigger it repeatedly on each CREATE."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "versions": [{"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "6726429c18c62dbf5e96ebbd522f262e016553fb", "status": "affected", "versionType": "git"}, {"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "13fb0fc4917621f3dfa285a27eaf7151d770b5e5", "status": "affected", "versionType": "git"}, {"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "890bc4fac3c0973a49cac35f634579bebba7fe48", "status": "affected", "versionType": "git"}, {"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "1ae3c59355dc9882e09c020afe8ffbd895ad0f29", "status": "affected", "versionType": "git"}, {"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "17a0f64cc02d4972e21c733d9f21d1c512963afa", "status": "affected", "versionType": "git"}, {"version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "af1689a9b7701d9907dfc84d2a4b57c4bc907144", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "versions": [{"version": "3.7", "status": "affected"}, {"version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.277", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.211", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.150", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.79", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.8", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.4.277"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.10.211"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.15.150"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.79"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.7"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"}, {"url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"}, {"url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"}, {"url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"}, {"url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"}, {"url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"}], "title": "smb: client: fix potential OOBs in smb2_parse_contexts()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52434", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-20T19:31:41.798943Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T17:21:08.159Z"}}, {"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://security.netapp.com/advisory/ntap-20250117-0009/"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-01-17T20:02:50.854Z"}}]}, "dataVersion": "5.2"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144", "tags": ["x_transferred"]}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html", "tags": ["x_transferred"]}, {"url": "https://security.netapp.com/advisory/ntap-20250117-0009/"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-01-17T20:02:50.854Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52434", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-20T19:31:41.798943Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-07-05T15:20:37.982Z"}}], "cna": {"title": "smb: client: fix potential OOBs in smb2_parse_contexts()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "6726429c18c62dbf5e96ebbd522f262e016553fb", "versionType": "git"}, {"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "13fb0fc4917621f3dfa285a27eaf7151d770b5e5", "versionType": "git"}, {"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "890bc4fac3c0973a49cac35f634579bebba7fe48", "versionType": "git"}, {"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "1ae3c59355dc9882e09c020afe8ffbd895ad0f29", "versionType": "git"}, {"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "17a0f64cc02d4972e21c733d9f21d1c512963afa", "versionType": "git"}, {"status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "lessThan": "af1689a9b7701d9907dfc84d2a4b57c4bc907144", "versionType": "git"}], "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"status": "unaffected", "version": "0", "lessThan": "3.7", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.277", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.211", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.150", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.79", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.8", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"}, {"url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"}, {"url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"}, {"url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"}, {"url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"}, {"url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n BUG: unable to handle page fault for address: ffff8881178d8cc3\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 4a01067 P4D 4a01067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? __die+0x23/0x70\n ? page_fault_oops+0x181/0x480\n ? search_module_extables+0x19/0x60\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? exc_page_fault+0x1b6/0x1c0\n ? asm_exc_page_fault+0x26/0x30\n ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n SMB2_open+0x38d/0x5f0 [cifs]\n ? smb2_is_path_accessible+0x138/0x260 [cifs]\n smb2_is_path_accessible+0x138/0x260 [cifs]\n cifs_is_path_remote+0x8d/0x230 [cifs]\n cifs_mount+0x7e/0x350 [cifs]\n cifs_smb3_do_mount+0x128/0x780 [cifs]\n smb3_get_tree+0xd9/0x290 [cifs]\n vfs_get_tree+0x2c/0x100\n ? capable+0x37/0x70\n path_mount+0x2d7/0xb80\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? _raw_spin_unlock_irqrestore+0x44/0x60\n __x64_sys_mount+0x11a/0x150\n do_syscall_64+0x47/0xf0\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n RIP: 0033:0x7f8737657b1e"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.277", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.211", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.150", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.79", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.8", "versionStartIncluding": "3.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.7", "versionStartIncluding": "3.7"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-01-05T10:16:04.679Z"}}}, "cveMetadata": {"cveId": "CVE-2023-52434", "state": "PUBLISHED", "dateUpdated": "2026-01-05T10:16:04.679Z", "dateReserved": "2024-02-20T12:30:33.290Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-02-20T18:04:44.006Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6726429c18c62dbf5e96ebbd522f262e016553fb", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}, {"lessThan": "13fb0fc4917621f3dfa285a27eaf7151d770b5e5", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}, {"lessThan": "890bc4fac3c0973a49cac35f634579bebba7fe48", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}, {"lessThan": "1ae3c59355dc9882e09c020afe8ffbd895ad0f29", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}, {"lessThan": "17a0f64cc02d4972e21c733d9f21d1c512963afa", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}, {"lessThan": "af1689a9b7701d9907dfc84d2a4b57c4bc907144", "status": "affected", "version": "b8c32dbb0deb287a5fcb78251e4eae6c7275760d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/smb/client/cached_dir.c", "fs/smb/client/smb2pdu.c", "fs/smb/client/smb2proto.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"lessThan": "3.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.277", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.211", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.150", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.79", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.7", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F9A8E3CE-3C47-4F53-8930-BACB8CF72891", "versionEndExcluding": "5.4.277", "versionStartIncluding": "5.3", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "7DDA4DCF-671D-415D-94DF-6E3C77DF0704", "versionEndExcluding": "5.10.211", "versionStartIncluding": "5.5", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CB6C60DE-9E0C-46C5-904D-D4F4031F8E95", "versionEndExcluding": "5.15.150", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "67EB34E2-9F42-457A-B4E0-363D25F4C888", "versionEndIncluding": "6.1.79", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D2BCC7DD-ECAF-4BDD-981F-3C11858164E8", "versionEndExcluding": "6.6.8", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.7:rc1:*:*:*:*:*:*", "matchCriteriaId": "3A0038DE-E183-4958-A6E3-CE3821FEAFBF", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.7:rc2:*:*:*:*:*:*", "matchCriteriaId": "E31AD4FC-436C-44AB-BCAB-3A0B37F69EE0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.7:rc3:*:*:*:*:*:*", "matchCriteriaId": "C56C6E04-4F04-44A3-8DB8-93899903CFCF", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.7:rc4:*:*:*:*:*:*", "matchCriteriaId": "5C78EDA4-8BE6-42FC-9512-49032D525A55", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.7:rc5:*:*:*:*:*:*", "matchCriteriaId": "32F2E5CA-13C6-4601-B530-D465CBF73D1C", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix potential OOBs in smb2_parse_contexts()\n\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\n\nThis fixes following oops when accessing invalid create contexts from\nserver:\n\n BUG: unable to handle page fault for address: ffff8881178d8cc3\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n PGD 4a01067 P4D 4a01067 PUD 0\n Oops: 0000 [#1] PREEMPT SMP NOPTI\n CPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\n rel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\n RIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\n Code: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\n RSP: 0018:ffffc900007939e0 EFLAGS: 00010216\n RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\n RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\n RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\n R10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\n R13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\n FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\n PKRU: 55555554\n Call Trace:\n <TASK>\n ? __die+0x23/0x70\n ? page_fault_oops+0x181/0x480\n ? search_module_extables+0x19/0x60\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? exc_page_fault+0x1b6/0x1c0\n ? asm_exc_page_fault+0x26/0x30\n ? smb2_parse_contexts+0xa0/0x3a0 [cifs]\n SMB2_open+0x38d/0x5f0 [cifs]\n ? smb2_is_path_accessible+0x138/0x260 [cifs]\n smb2_is_path_accessible+0x138/0x260 [cifs]\n cifs_is_path_remote+0x8d/0x230 [cifs]\n cifs_mount+0x7e/0x350 [cifs]\n cifs_smb3_do_mount+0x128/0x780 [cifs]\n smb3_get_tree+0xd9/0x290 [cifs]\n vfs_get_tree+0x2c/0x100\n ? capable+0x37/0x70\n path_mount+0x2d7/0xb80\n ? srso_alias_return_thunk+0x5/0xfbef5\n ? _raw_spin_unlock_irqrestore+0x44/0x60\n __x64_sys_mount+0x11a/0x150\n do_syscall_64+0x47/0xf0\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n RIP: 0033:0x7f8737657b1e"}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: smb: cliente: corrige OOB potenciales en smb2_parse_contexts() Valida compensaciones y longitudes antes de desreferenciar crea contextos en smb2_parse_contexts(). Esto corrige los siguientes errores al acceder a contextos de creaci\u00f3n no v\u00e1lidos desde el servidor: ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n: ffff8881178d8cc3 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000) - p\u00e1gina no presente PGD 4a01067 P4D 4a01067 PUD 0 Ups: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 1736 Comm: mount.cifs No est\u00e1 contaminado 6.7.0-rc4 #1 Nombre de hardware: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2 -3-gd478f380-rebuilt.opensuse.org 04/04/2014 RIP: 0010: SMB2_PARSE_CONTEXTS+0XA0/0X3A0 [CIFS] C\u00f3digo: F8 10 75 13 48 B8 93 AD 25 50 9C B4 11 E7 49 39 06 0f 84 D2 00 00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 &lt;0f&gt; b7 7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00 RSP: 0018:ffffc900007939e0 EFLAGS: 00010216 RAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90 RDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000 RBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000 R10: ffff8880180cc000 R11: 00000000000000024 R12: 0000000000000000 R13: 0000000 000000020 R14: 00000000000000000 R15: ffffc90000793c22 FS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8881178d8cc3 CR3 : 00000000181ca000 CR4: 0000000000750ef0 PKRU: 55555554 Seguimiento de llamadas: ? __morir+0x23/0x70 ? page_fault_oops+0x181/0x480? search_module_extables+0x19/0x60? srso_alias_return_thunk+0x5/0xfbef5? exc_page_fault+0x1b6/0x1c0? asm_exc_page_fault+0x26/0x30? smb2_parse_contexts+0xa0/0x3a0 [cifs] SMB2_open+0x38d/0x5f0 [cifs] ? smb2_is_path_accessible+0x138/0x260 [cifs] smb2_is_path_accessible+0x138/0x260 [cifs] cifs_is_path_remote+0x8d/0x230 [cifs] cifs_mount+0x7e/0x350 [cifs] cifs_smb3_do_mount+0x128/0x7 80 [cifs] smb3_get_tree+0xd9/0x290 [cifs] vfs_get_tree+ 0x2c/0x100? capaz+0x37/0x70 path_mount+0x2d7/0xb80? srso_alias_return_thunk+0x5/0xfbef5? _raw_spin_unlock_irqrestore+0x44/0x60 __x64_sys_mount+0x11a/0x150 do_syscall_64+0x47/0xf0 Entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f8737657b1e"}], "id": "CVE-2023-52434", "lastModified": "2026-08-04T10:18:26.637", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-52434", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-20T19:31:41.798943Z", "version": "2.0.3"}}]}, "published": "2024-02-20T18:15:50.790", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/13fb0fc4917621f3dfa285a27eaf7151d770b5e5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17a0f64cc02d4972e21c733d9f21d1c512963afa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1ae3c59355dc9882e09c020afe8ffbd895ad0f29"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6726429c18c62dbf5e96ebbd522f262e016553fb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/890bc4fac3c0973a49cac35f634579bebba7fe48"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/af1689a9b7701d9907dfc84d2a4b57c4bc907144"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250117-0009/"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:2950", "cpe": "cpe:/a:redhat:enterprise_linux:8::nfv", "package": "kernel-rt-0:4.18.0-553.rt7.342.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-05-22T00:00:00Z"}, {"advisory": "RHSA-2024:3138", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "kernel-0:4.18.0-553.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2024-05-22T00:00:00Z"}, {"advisory": "RHSA-2024:5692", "cpe": "cpe:/o:redhat:rhel_aus:8.6", "package": "kernel-0:4.18.0-372.119.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support", "release_date": "2024-08-21T00:00:00Z"}, {"advisory": "RHSA-2024:5692", "cpe": "cpe:/o:redhat:rhel_tus:8.6", "package": "kernel-0:4.18.0-372.119.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service", "release_date": "2024-08-21T00:00:00Z"}, {"advisory": "RHSA-2024:5692", "cpe": "cpe:/o:redhat:rhel_e4s:8.6", "package": "kernel-0:4.18.0-372.119.1.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions", "release_date": "2024-08-21T00:00:00Z"}, {"advisory": "RHSA-2024:6993", "cpe": "cpe:/o:redhat:rhel_eus:8.8", "package": "kernel-0:4.18.0-477.74.1.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2024-09-24T00:00:00Z"}, {"advisory": "RHSA-2024:2394", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2394", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-427.13.1.el9_4", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:4415", "cpe": "cpe:/a:redhat:rhel_e4s:9.0", "package": "kernel-0:5.14.0-70.105.1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2024-07-09T00:00:00Z"}, {"advisory": "RHSA-2024:4412", "cpe": "cpe:/a:redhat:rhel_e4s:9.0::nfv", "package": "kernel-rt-0:5.14.0-70.105.1.rt21.177.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions", "release_date": "2024-07-09T00:00:00Z"}, {"advisory": "RHSA-2024:4823", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "kernel-0:5.14.0-284.75.1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}, {"advisory": "RHSA-2024:4831", "cpe": "cpe:/a:redhat:rhel_eus:9.2::nfv", "package": "kernel-rt-0:5.14.0-284.75.1.rt14.360.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-07-24T00:00:00Z"}], "bugzilla": {"description": "kernel: smb: client: fix potential OOBs in smb2_parse_contexts()", "id": "2265285", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2265285"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H", "status": "verified"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nsmb: client: fix potential OOBs in smb2_parse_contexts()\nValidate offsets and lengths before dereferencing create contexts in\nsmb2_parse_contexts().\nThis fixes following oops when accessing invalid create contexts from\nserver:\nBUG: unable to handle page fault for address: ffff8881178d8cc3\n#PF: supervisor read access in kernel mode\n#PF: error_code(0x0000) - not-present page\nPGD 4a01067 P4D 4a01067 PUD 0\nOops: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 3 PID: 1736 Comm: mount.cifs Not tainted 6.7.0-rc4 #1\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS\nrel-1.16.2-3-gd478f380-rebuilt.opensuse.org 04/01/2014\nRIP: 0010:smb2_parse_contexts+0xa0/0x3a0 [cifs]\nCode: f8 10 75 13 48 b8 93 ad 25 50 9c b4 11 e7 49 39 06 0f 84 d2 00\n00 00 8b 45 00 85 c0 74 61 41 29 c5 48 01 c5 41 83 fd 0f 76 55 <0f> b7\n7d 04 0f b7 45 06 4c 8d 74 3d 00 66 83 f8 04 75 bc ba 04 00\nRSP: 0018:ffffc900007939e0 EFLAGS: 00010216\nRAX: ffffc90000793c78 RBX: ffff8880180cc000 RCX: ffffc90000793c90\nRDX: ffffc90000793cc0 RSI: ffff8880178d8cc0 RDI: ffff8880180cc000\nRBP: ffff8881178d8cbf R08: ffffc90000793c22 R09: 0000000000000000\nR10: ffff8880180cc000 R11: 0000000000000024 R12: 0000000000000000\nR13: 0000000000000020 R14: 0000000000000000 R15: ffffc90000793c22\nFS: 00007f873753cbc0(0000) GS:ffff88806bc00000(0000)\nknlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: ffff8881178d8cc3 CR3: 00000000181ca000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n<TASK>\n? __die+0x23/0x70\n? page_fault_oops+0x181/0x480\n? search_module_extables+0x19/0x60\n? srso_alias_return_thunk+0x5/0xfbef5\n? exc_page_fault+0x1b6/0x1c0\n? asm_exc_page_fault+0x26/0x30\n? smb2_parse_contexts+0xa0/0x3a0 [cifs]\nSMB2_open+0x38d/0x5f0 [cifs]\n? smb2_is_path_accessible+0x138/0x260 [cifs]\nsmb2_is_path_accessible+0x138/0x260 [cifs]\ncifs_is_path_remote+0x8d/0x230 [cifs]\ncifs_mount+0x7e/0x350 [cifs]\ncifs_smb3_do_mount+0x128/0x780 [cifs]\nsmb3_get_tree+0xd9/0x290 [cifs]\nvfs_get_tree+0x2c/0x100\n? capable+0x37/0x70\npath_mount+0x2d7/0xb80\n? srso_alias_return_thunk+0x5/0xfbef5\n? _raw_spin_unlock_irqrestore+0x44/0x60\n__x64_sys_mount+0x11a/0x150\ndo_syscall_64+0x47/0xf0\nentry_SYSCALL_64_after_hwframe+0x6f/0x77\nRIP: 0033:0x7f8737657b1e", "A flaw was found in the smb client in the Linux kernel. A potential out-of-bounds error was seen in the smb2_parse_contexts() function. Validate offsets and lengths before dereferencing create contexts in smb2_parse_contexts()."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, prevent module cifs from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically."}, "name": "CVE-2023-52434", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52434\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52434\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=17a0f64cc02d4972e21c733d9f21d1c512963afa\nhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=af1689a9b7701d9907dfc84d2a4b57c4bc907144\nhttps://lore.kernel.org/linux-cve-announce/2024022033-makeshift-flammable-cb72@gregkh/T/#u"], "threat_severity": "Moderate"}

{}