CVE-2023-53372 (GCVE-0-2023-53372)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-01-14 19:03
VLAI?
Title
sctp: fix a potential overflow in sctp_ifwdtsn_skip
Summary
In the Linux kernel, the following vulnerability has been resolved:
sctp: fix a potential overflow in sctp_ifwdtsn_skip
Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only
checks the pos against the end of the chunk. However, the data left for
the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference
it as struct sctp_ifwdtsn_skip may cause coverflow.
This patch fixes it by checking the pos against "the end of the chunk -
sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to
sctp_fwdtsn_skip.
Severity ?
7.8 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux |
Affected:
0fc2ea922c8ad5520c80f03facbf396c81dce802 , < 4fbd094d4131a10d06a45d64158567052a35b3f4
(git)
Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < ad831a7079c99c01e801764b53bc9997c2e9c0f7 (git) Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < 79b28f42214a3d0d6a8c514db3602260bd5d6cb5 (git) Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < 6109f5b13ce3e3e537db6f18976ec0e9118d1c6f (git) Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < 5c9367ac5a22d71841bcd00130f9146c9b227d57 (git) Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < ad988e9b5ff04607e624a459209e8c2d0c15fc73 (git) Affected: 0fc2ea922c8ad5520c80f03facbf396c81dce802 , < 32832a2caf82663870126c5186cf8f86c8b2a649 (git) |
|||||||
|
|||||||||
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"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.8, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-53372\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-01-14T18:53:52.812844Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-787\", \"description\": \"CWE-787 Out-of-bounds Write\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-01-14T18:53:48.396Z\"}}], \"cna\": {\"title\": \"sctp: fix a potential overflow in sctp_ifwdtsn_skip\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"4fbd094d4131a10d06a45d64158567052a35b3f4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"ad831a7079c99c01e801764b53bc9997c2e9c0f7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"79b28f42214a3d0d6a8c514db3602260bd5d6cb5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"6109f5b13ce3e3e537db6f18976ec0e9118d1c6f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"5c9367ac5a22d71841bcd00130f9146c9b227d57\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"ad988e9b5ff04607e624a459209e8c2d0c15fc73\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"0fc2ea922c8ad5520c80f03facbf396c81dce802\", \"lessThan\": \"32832a2caf82663870126c5186cf8f86c8b2a649\", \"versionType\": \"git\"}], \"programFiles\": [\"net/sctp/stream_interleave.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.281\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.241\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.178\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.108\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.25\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.2.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.2.*\"}, {\"status\": \"unaffected\", \"version\": \"6.3\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/sctp/stream_interleave.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4\"}, {\"url\": \"https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7\"}, {\"url\": \"https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5\"}, {\"url\": \"https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f\"}, {\"url\": \"https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57\"}, {\"url\": \"https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73\"}, {\"url\": \"https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nsctp: fix a potential overflow in sctp_ifwdtsn_skip\\n\\nCurrently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only\\nchecks the pos against the end of the chunk. However, the data left for\\nthe last pos may be \u003c sizeof(struct sctp_ifwdtsn_skip), and dereference\\nit as struct sctp_ifwdtsn_skip may cause coverflow.\\n\\nThis patch fixes it by checking the pos against \\\"the end of the chunk -\\nsizeof(struct sctp_ifwdtsn_skip)\\\" in sctp_ifwdtsn_skip, similar to\\nsctp_fwdtsn_skip.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.281\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.241\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.178\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.108\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.25\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.2.12\", \"versionStartIncluding\": \"4.16\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3\", \"versionStartIncluding\": \"4.16\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-18T13:33:19.549Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2023-53372\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T19:03:02.976Z\", \"dateReserved\": \"2025-09-17T14:54:09.734Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T13:33:19.549Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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