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CVE-2023-53372
sctp: fix a potential overflow in sctp_ifwdtsn_skip
High8.2EPSS 0.39%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.39% · top 67% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.2.
Weakness
Affected products
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < 4fbd094d4131a10d06a45d64158567052a35b3f4
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < ad831a7079c99c01e801764b53bc9997c2e9c0f7
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < 79b28f42214a3d0d6a8c514db3602260bd5d6cb5
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < 6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < 5c9367ac5a22d71841bcd00130f9146c9b227d57
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < ad988e9b5ff04607e624a459209e8c2d0c15fc73
- affected 0fc2ea922c8ad5520c80f03facbf396c81dce802 – < 32832a2caf82663870126c5186cf8f86c8b2a649
- affected 4.16
- unaffected < 4.16
- unaffected 4.19.281 – ≤ 4.19.*
- unaffected 5.4.241 – ≤ 5.4.*
- unaffected 5.10.178 – ≤ 5.10.*
- unaffected 5.15.108 – ≤ 5.15.*
- unaffected 6.1.25 – ≤ 6.1.*
- unaffected 6.2.12 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (7)
- https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4 (opens in a new tab)
- https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7 (opens in a new tab)
- https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5 (opens in a new tab)
- https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f (opens in a new tab)
- https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57 (opens in a new tab)
- https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73 (opens in a new tab)
- https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53372)Record last updated .