CVE-2023-53372
sctp: fix a potential overflow in sctp_ifwdtsn_skip
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.16
References 7
git.kernel.org
- stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4
- stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7
- stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5
- stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f
- stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57
- stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73
- stable/c/32832a2caf82663870126c5186cf8f86c8b2a649