{"id":"CVE-2023-53372","summary":"sctp: fix a potential overflow in sctp_ifwdtsn_skip","details":"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.","modified":"2026-04-02T09:44:04.544925Z","published":"2025-09-18T13:33:19.549Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53372.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/32832a2caf82663870126c5186cf8f86c8b2a649"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4fbd094d4131a10d06a45d64158567052a35b3f4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5c9367ac5a22d71841bcd00130f9146c9b227d57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6109f5b13ce3e3e537db6f18976ec0e9118d1c6f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79b28f42214a3d0d6a8c514db3602260bd5d6cb5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad831a7079c99c01e801764b53bc9997c2e9c0f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad988e9b5ff04607e624a459209e8c2d0c15fc73"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53372.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53372"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0fc2ea922c8ad5520c80f03facbf396c81dce802"},{"fixed":"4fbd094d4131a10d06a45d64158567052a35b3f4"},{"fixed":"ad831a7079c99c01e801764b53bc9997c2e9c0f7"},{"fixed":"79b28f42214a3d0d6a8c514db3602260bd5d6cb5"},{"fixed":"6109f5b13ce3e3e537db6f18976ec0e9118d1c6f"},{"fixed":"5c9367ac5a22d71841bcd00130f9146c9b227d57"},{"fixed":"ad988e9b5ff04607e624a459209e8c2d0c15fc73"},{"fixed":"32832a2caf82663870126c5186cf8f86c8b2a649"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53372.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}