CVE-2021-46915

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2021-46915", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-25T13:45:52.718Z", "datePublished": "2024-02-27T06:53:54.148Z", "dateUpdated": "2026-05-11T13:44:21.141Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:44:21.141Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\n\ndiv_u64() divides u64 by u32.\n\nnft_limit_init() wants to divide u64 by u64, use the appropriate\nmath function (div64_u64)\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\n nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\n nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\n nf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\n nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nft_limit.c"], "versions": [{"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "9065ccb9ec92c5120e7e97958397ebdb454f23d6", "status": "affected", "versionType": "git"}, {"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "fadd3c4afdf3d4c21f4d138502f8b76334987e26", "status": "affected", "versionType": "git"}, {"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "01fb1626b620cb37a65ad08e0f626489e8f042ef", "status": "affected", "versionType": "git"}, {"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "dc1732baa9da5b68621586bf8636ebbc27dc62d2", "status": "affected", "versionType": "git"}, {"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "1bb3ee4259936cc3b2d80a4a480bbb4868575071", "status": "affected", "versionType": "git"}, {"version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "lessThan": "b895bdf5d643b6feb7c60856326dd4feb6981560", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/netfilter/nft_limit.c"], "versions": [{"version": "4.13", "status": "affected"}, {"version": "0", "lessThan": "4.13", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.232", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.189", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.114", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.32", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.11.16", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.12", "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": "4.13", "versionEndExcluding": "4.14.232"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "4.19.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "5.4.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.13", "versionEndExcluding": "5.10.32"}, {"vulnerable": true, "criteria": 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"unaffected", "version": "4.19.189", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.114", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.32", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.11.16", "versionType": "semver", "lessThanOrEqual": "5.11.*"}, {"status": "unaffected", "version": "5.12", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/netfilter/nft_limit.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6"}, {"url": "https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26"}, {"url": "https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef"}, {"url": "https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2"}, {"url": "https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071"}, {"url": "https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\n\ndiv_u64() divides u64 by u32.\n\nnft_limit_init() wants to divide u64 by u64, use the appropriate\nmath function (div64_u64)\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\n nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\n nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\n nf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\n nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "4.14.232", 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"versionType": "git"}, {"lessThan": "b895bdf5d643b6feb7c60856326dd4feb6981560", "status": "affected", "version": "c26844eda9d4fdbd266660e3b3de2d0270e3a1ed", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/netfilter/nft_limit.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.13"}, {"lessThan": "4.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.232", "versionType": "semver"}, {"lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.189", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.114", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.32", "versionType": "semver"}, {"lessThanOrEqual": "5.11.*", "status": "unaffected", "version": "5.11.16", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "5.12", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B57FF6BE-DF15-4360-A821-3EE92F96F189", "versionEndExcluding": "4.14.232", "versionStartIncluding": "4.13.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8EEE5714-B0F5-40FB-9A6E-4BF3F2A51B2E", "versionEndExcluding": "4.19.189", "versionStartIncluding": "4.15.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "74CFBFBB-99A6-47E6-A16A-2A2E9F2A5A0D", "versionEndExcluding": "5.4.114", "versionStartIncluding": "4.20.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4EF3FA8C-FC42-4ADB-A80D-83E76B33E34F", "versionEndExcluding": "5.10.32", "versionStartIncluding": "5.5.0", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C5242B9-B5BD-4578-AD66-69DF59D54A14", "versionEndExcluding": "5.11.16", "versionStartIncluding": "5.11.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\n\ndiv_u64() divides u64 by u32.\n\nnft_limit_init() wants to divide u64 by u64, use the appropriate\nmath function (div64_u64)\n\ndivide error: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\n nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\n nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\n nf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\n nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\n nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\n nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\n netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\n netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\n netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\n sock_sendmsg_nosec net/socket.c:654 [inline]\n sock_sendmsg+0xcf/0x120 net/socket.c:674\n ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n ___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\n entry_SYSCALL_64_after_hwframe+0x44/0xae"}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: netfilter: nft_limit: evita posible error de divisi\u00f3n en nft_limit_init div_u64() divide u64 entre u32. nft_limit_init() quiere dividir u64 entre u64, use la funci\u00f3n matem\u00e1tica apropiada (div64_u64) error de divisi\u00f3n: 0000 [#1] CPU PREEMPT SMP KASAN: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller # 0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:div_u64_rem include/linux/math64.h:28 [en l\u00ednea] RIP: 0010:div_u64 include/linux/math64.h: 127 [en l\u00ednea] RIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85 C\u00f3digo: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 &lt;49&gt; f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00 RSP: 0018:ffffc90009447198 EF LAGS: 00010246 RAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003 RBP: ffff888 020f80908 R08: 0000200000000000 R09: 0000000000000000 R10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270 R13: 000000000000 0000 R14: 0000000000000000 R15: 0000000000000000 FS: 000000000097a300(0000) GS :ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c4 CR3: 0000000026a52000 CR 4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000000000 DR6: 00000000ffe0ff0 DR7: 00000 00000000400 Rastreo de llamadas: nf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [en l\u00ednea] nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713 nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160 nf_tables_newset+0x1997/0x3150 net/netfilter/ nf_tables_api.c:4321 nfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [en l\u00ednea] nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:59 8 netlink_unicast_kernel red/netlink /af_netlink.c:1312 [en l\u00ednea] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:654 [en l\u00ednea] sock_sendmsg+ 0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_sys llamada_64+0x2d/ 0x70 arch/x86/entry/common.c:46 entrada_SYSCALL_64_after_hwframe+0x44/0xae"}], "id": "CVE-2021-46915", "lastModified": "2026-06-17T04:15:50.133", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2021-46915", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-27T20:05:20.730177Z", "version": "2.0.3"}}]}, "published": "2024-02-27T07:15:08.083", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01fb1626b620cb37a65ad08e0f626489e8f042ef"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1bb3ee4259936cc3b2d80a4a480bbb4868575071"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/9065ccb9ec92c5120e7e97958397ebdb454f23d6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b895bdf5d643b6feb7c60856326dd4feb6981560"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dc1732baa9da5b68621586bf8636ebbc27dc62d2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fadd3c4afdf3d4c21f4d138502f8b76334987e26"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:2006", "cpe": "cpe:/o:redhat:rhel_aus:8.2", "package": "kernel-0:4.18.0-193.133.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Advanced Update Support", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:2008", "cpe": "cpe:/a:redhat:rhel_tus:8.2::nfv", "package": "kernel-rt-0:4.18.0-193.133.1.rt13.184.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:2006", "cpe": "cpe:/o:redhat:rhel_tus:8.2", "package": "kernel-0:4.18.0-193.133.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:2006", "cpe": "cpe:/o:redhat:rhel_e4s:8.2", "package": "kernel-0:4.18.0-193.133.1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions", "release_date": "2024-04-23T00:00:00Z"}, {"advisory": "RHSA-2024:2582", "cpe": "cpe:/o:redhat:rhel_aus:8.4", "package": "kernel-0:4.18.0-305.130.1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2585", "cpe": "cpe:/a:redhat:rhel_tus:8.4::nfv", "package": "kernel-rt-0:4.18.0-305.130.1.rt7.206.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2582", "cpe": "cpe:/o:redhat:rhel_tus:8.4", "package": "kernel-0:4.18.0-305.130.1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service", "release_date": "2024-04-30T00:00:00Z"}, {"advisory": "RHSA-2024:2582", "cpe": "cpe:/o:redhat:rhel_e4s:8.4", "package": "kernel-0:4.18.0-305.130.1.el8_4", "product_name": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions", "release_date": "2024-04-30T00:00:00Z"}], "bugzilla": {"description": "kernel: netfilter: divide error in nft_limit_init", "id": "2266423", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2266423"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetfilter: nft_limit: avoid possible divide error in nft_limit_init\ndiv_u64() divides u64 by u32.\nnft_limit_init() wants to divide u64 by u64, use the appropriate\nmath function (div64_u64)\ndivide error: 0000 [#1] PREEMPT SMP KASAN\nCPU: 1 PID: 8390 Comm: syz-executor188 Not tainted 5.12.0-rc4-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\nRIP: 0010:div_u64_rem include/linux/math64.h:28 [inline]\nRIP: 0010:div_u64 include/linux/math64.h:127 [inline]\nRIP: 0010:nft_limit_init+0x2a2/0x5e0 net/netfilter/nft_limit.c:85\nCode: ef 4c 01 eb 41 0f 92 c7 48 89 de e8 38 a5 22 fa 4d 85 ff 0f 85 97 02 00 00 e8 ea 9e 22 fa 4c 0f af f3 45 89 ed 31 d2 4c 89 f0 <49> f7 f5 49 89 c6 e8 d3 9e 22 fa 48 8d 7d 48 48 b8 00 00 00 00 00\nRSP: 0018:ffffc90009447198 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000200000000000 RCX: 0000000000000000\nRDX: 0000000000000000 RSI: ffffffff875152e6 RDI: 0000000000000003\nRBP: ffff888020f80908 R08: 0000200000000000 R09: 0000000000000000\nR10: ffffffff875152d8 R11: 0000000000000000 R12: ffffc90009447270\nR13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\nFS: 000000000097a300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200001c4 CR3: 0000000026a52000 CR4: 00000000001506e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\nnf_tables_newexpr net/netfilter/nf_tables_api.c:2675 [inline]\nnft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2713\nnft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5160\nnf_tables_newset+0x1997/0x3150 net/netfilter/nf_tables_api.c:4321\nnfnetlink_rcv_batch+0x85a/0x21b0 net/netfilter/nfnetlink.c:456\nnfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:580 [inline]\nnfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:598\nnetlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline]\nnetlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338\nnetlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927\nsock_sendmsg_nosec net/socket.c:654 [inline]\nsock_sendmsg+0xcf/0x120 net/socket.c:674\n____sys_sendmsg+0x6e8/0x810 net/socket.c:2350\n___sys_sendmsg+0xf3/0x170 net/socket.c:2404\n__sys_sendmsg+0xe5/0x1b0 net/socket.c:2433\ndo_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\nentry_SYSCALL_64_after_hwframe+0x44/0xae", "A denial of service flaw was found in nft_limit_init in netfilter's nft_limit in the Linux Kernel. This issue occurs due to an inappropriate math function selection, which may cause an availability threat."], "name": "CVE-2021-46915", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "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:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-02-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46915\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46915\nhttps://lore.kernel.org/linux-cve-announce/2024022709-CVE-2021-46915-7ded@gregkh/"], "threat_severity": "Low"}

{}