CVE-2023-53372
High
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.
SeverityHigh
CVSS8.2
Exploit probability—
Product
Linux Kernel
PublishedSep 18, 2025
First seenSep 18, 2025
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- linux linux_kernel4.19.281, 5.4.241, 5.10.178, 5.15.108, 6.1.25, 6.2.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.16 ≤ v < 4.19.281, 4.20 ≤ v < 5.4.241, 5.5 ≤ v < 5.10.178, 5.11 ≤ v < 5.15.108, 5.16 ≤ v < 6.1.25, 6.2 ≤ v < 6.2.12, 6.3 | 4.19.281, 5.4.241, 5.10.178, 5.15.108, 6.1.25, 6.2.12 |
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