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CVE-2023-53372 is an out-of-bounds access vulnerability in the Linux kernel SCTP implementation's sctp_ifwdtsn_skip handling. While _sctp_walk_ifwdtsn traverses I-FORWARD-TSN skip entries, the prior validation checked only that the current position remained within the chunk. If the final remaining data is smaller than struct sctp_ifwdtsn_skip, the code can nevertheless dereference that undersized trailing data as the structure. The fix strengthens the boundary validation to require space for a complete skip structure, using a comparison against the chunk end minus sizeof(struct sctp_ifwdtsn_skip).
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Unknown
Referenced as affecting packages covered by the TuxCare CentOS Linux 8.5 advisory; no technical vulnerability details are provided.
A Linux kernel vulnerability involving a potential overflow in sctp_ifwdtsn_skip.
A Linux kernel SCTP vulnerability involving a potential overflow/out-of-bounds access in sctp_ifwdtsn_skip when traversing ifwdtsn skips and insufficient remaining chunk data is dereferenced as struct sctp_ifwdtsn_skip.
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Cross-references every affected SKU, including bundled OEM variants.
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