CVE-2023-52454

{"dataType": "CVE_RECORD", "cveMetadata": {"cveId": "CVE-2023-52454", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-20T12:30:33.293Z", "datePublished": "2024-02-23T14:46:17.827Z", "dateUpdated": "2026-08-05T09:10:04.196Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T09:10:04.196Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length\n\nIf the host sends an H2CData command with an invalid DATAL,\nthe kernel may crash in nvmet_tcp_build_pdu_iovec().\n\nUnable to handle kernel NULL pointer dereference at\nvirtual address 0000000000000000\nlr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp]\nCall trace:\n process_one_work+0x174/0x3c8\n worker_thread+0x2d0/0x3e8\n kthread+0x104/0x110\n\nFix the bug by raising a fatal error if DATAL isn't coherent\nwith the packet size.\nAlso, the PDU length should never exceed the MAXH2CDATA parameter which\nhas been communicated to the host in nvmet_tcp_handle_icreq()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:N - nvmet-tcp is an NVMe-over-TCP target that listens on a TCP port and processes H2CData PDUs from remote initiators via nvmet_tcp_data_ready \u2192 nvmet_tcp_io_work \u2192 nvmet_tcp_handle_h2c_data_pdu.\nAC:L - The attacker deterministically triggers the bug by sending an H2CData PDU with an invalid DATAL (incoherent with plen, zero, or oversized); no race or attacker-independent condition is required.\nPR:N - H2CData is accepted after the unauthenticated ICREQ/ICRESP handshake, before Connect host-NQN checks or optional DH-HMAC-CHAP, so an unauthenticated network peer can reach the vulnerable handler.\nUI:N - Exploitation requires only crafted NVMe/TCP PDUs to the listening target; no local user or administrator action is needed.\nS:U - The NULL dereference crashes the kernel running the nvmet-tcp target; impact stays within that system's security authority with no VM/IOMMU/sandbox boundary crossing.\nC:N - The documented failure is a NULL pointer dereference at address 0 in nvmet_tcp_build_pdu_iovec(); there is no out-of-bounds read or other information-disclosure primitive.\nI:N - The bug is a NULL pointer read that oopses before any OOB write or control-flow hijack; it does not provide an arbitrary write primitive.\nA:H - The NULL dereference in the nvmet-tcp workqueue path produces a kernel oops/panic, and a remote peer can repeat the trigger to deny service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": 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"70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68", "status": "affected", "versionType": "git"}, {"version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30", "lessThan": "efa56305908ba20de2104f1b8508c6a7401833be", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/target/tcp.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.268", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.209", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.148", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.75", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.14", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.7.2", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.8", "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": "5.0", "versionEndExcluding": "5.4.268"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.10.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.75"}, {"vulnerable": true, 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"https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be"}], "title": "nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52454", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-26T14:16:59.030675Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:23:40.242Z"}}, {"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:19.623Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d", "tags": ["x_transferred"]}, {"url": 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"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T23:03:19.623Z"}}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-52454", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-02-26T14:16:59.030675Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-05-23T19:01:13.214Z"}, "title": "CISA ADP Vulnrichment"}], "cna": {"title": "nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}, "scenarios": [{"lang": "en", "value": "AV:N - nvmet-tcp is an NVMe-over-TCP target that listens on a TCP port and processes H2CData PDUs from remote initiators via nvmet_tcp_data_ready \u2192 nvmet_tcp_io_work \u2192 nvmet_tcp_handle_h2c_data_pdu.\nAC:L - The attacker deterministically triggers the bug by sending an H2CData PDU with an invalid DATAL (incoherent with plen, zero, or oversized); no race or attacker-independent condition is required.\nPR:N - H2CData is accepted after the unauthenticated ICREQ/ICRESP handshake, before Connect host-NQN checks or optional DH-HMAC-CHAP, so an unauthenticated network peer can reach the vulnerable handler.\nUI:N - Exploitation requires only crafted NVMe/TCP PDUs to the listening target; no local user or administrator action is needed.\nS:U - The NULL dereference crashes the kernel running the nvmet-tcp target; impact stays within that system's security authority with no VM/IOMMU/sandbox boundary crossing.\nC:N - The documented failure is a NULL pointer dereference at address 0 in nvmet_tcp_build_pdu_iovec(); there is no out-of-bounds read or other information-disclosure primitive.\nI:N - The bug is a NULL pointer read that oopses before any OOB write or control-flow hijack; it does not provide an arbitrary write primitive.\nA:H - The NULL dereference in the nvmet-tcp workqueue path produces a kernel oops/panic, and a remote peer can repeat the trigger to deny service."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30", "lessThan": "ee5e7632e981673f42a50ade25e71e612e543d9d", "versionType": "git"}, {"status": "affected", "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30", "lessThan": "f775f2621c2ac5cc3a0b3a64665dad4fb146e510", "versionType": "git"}, {"status": "affected", "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30", "lessThan": "4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d", "versionType": "git"}, {"status": "affected", "version": "872d26a391da92ed8f0c0f5cb5fef428067b7f30", "lessThan": 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Si el host env\u00eda un comando H2CData con un DATAL no v\u00e1lido, el kernel puede fallar en nvmet_tcp_build_pdu_iovec(). No se puede manejar la desreferencia del puntero NULL del kernel en la direcci\u00f3n virtual 0000000000000000 lr: nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Rastreo de llamadas: Process_one_work+0x174/0x3c8 trabajador_thread+0x2d0/0x3e8 kthread+0x104/0x110 Solucione el error generando un error fatal si DATAL es No es coherente con el tama\u00f1o del paquete. Adem\u00e1s, la longitud de la PDU nunca debe exceder el par\u00e1metro MAXH2CDATA que se ha comunicado al host en nvmet_tcp_handle_icreq()."}], "id": "CVE-2023-52454", "lastModified": "2026-08-04T10:18:28.533", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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-2023-52454", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-02-26T14:16:59.030675Z", "version": "2.0.3"}}]}, "published": "2024-02-23T15:15:08.137", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/24e05760186dc070d3db190ca61efdbce23afc88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2871aa407007f6f531fae181ad252486e022df42"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f775f2621c2ac5cc3a0b3a64665dad4fb146e510"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/24e05760186dc070d3db190ca61efdbce23afc88"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2871aa407007f6f531fae181ad252486e022df42"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f775f2621c2ac5cc3a0b3a64665dad4fb146e510"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length", "id": "2265791", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2265791"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length\nIf the host sends an H2CData command with an invalid DATAL,\nthe kernel may crash in nvmet_tcp_build_pdu_iovec().\nUnable to handle kernel NULL pointer dereference at\nvirtual address 0000000000000000\nlr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp]\nCall trace:\nprocess_one_work+0x174/0x3c8\nworker_thread+0x2d0/0x3e8\nkthread+0x104/0x110\nFix the bug by raising a fatal error if DATAL isn't coherent\nwith the packet size.\nAlso, the PDU length should never exceed the MAXH2CDATA parameter which\nhas been communicated to the host in nvmet_tcp_handle_icreq().", "A vulnerability was found in the Linux kernel. This flaw allows an attacker to send a malicious command to cause a kernel panic, leading to a denial of service."], "mitigation": {"lang": "en:us", "value": "No mitigation is currently available for this vulnerability. Make sure to perform the updates as they become available."}, "name": "CVE-2023-52454", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "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": "2024-02-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-52454\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-52454\nhttps://lore.kernel.org/linux-cve-announce/2024022330-CVE-2023-52454-5cf0@gregkh/T/#u"], "threat_severity": "Moderate"}

{}