CVE-2023-53372 (GCVE-0-2023-53372)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-05-11 19:43
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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|
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"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."
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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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