CVE-2024-50251 Affecting kernel-cross-headers package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-8405296
- published 26 Nov 2024
- disclosed 9 Nov 2024
How to fix?
There is no fixed version for RHEL:8 kernel-cross-headers.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_payload: sanitize offset and length before calling skb_checksum()
If access to offset + length is larger than the skbuff length, then skb_checksum() triggers BUG_ON().
skb_checksum() internally subtracts the length parameter while iterating over skbuff, BUG_ON(len) at the end of it checks that the expected length to be included in the checksum calculation is fully consumed.
References
- https://access.redhat.com/security/cve/CVE-2024-50251
- https://git.kernel.org/stable/c/0ab3be58b45b996764aba0187b46de19b3e58a72
- https://git.kernel.org/stable/c/a661ed364ae6ae88c2fafa9ddc27df1af2a73701
- https://git.kernel.org/stable/c/ac7df3fc80fc82bcc3b1e8f6ebc0d2c435d0c534
- https://git.kernel.org/stable/c/b1d2de8a669fa14c499a385e056944d5352b3b40
- https://git.kernel.org/stable/c/c43e0ea848e7b9bef7a682cbc5608022d6d29d7b
- https://git.kernel.org/stable/c/d3217323525f7596427124359e76ea0d8fcc9874
- https://git.kernel.org/stable/c/d5953d680f7e96208c29ce4139a0e38de87a57fe
- https://git.kernel.org/stable/c/e3e608cbad376674d19a71ccd0d41804d9393f02
- https://github.com/slavin-ayu/CVE-2024-50251-PoC