A flaw was found in the Netfilter subsystem in the Linux kernel. The issue is in the nft_byteorder_eval() function, where the code iterates through a loop and writes to the `dst` array. On each iteration, 8 bytes are written, but `dst` is an array of u32, so each element only has space for 4 bytes. That means every iteration overwrites part of the previous element corrupting this array of u32. This flaw allows a local user to cause a denial of service or potentially break NetFilter functionality.
Workaround:
The product does not properly handle when the expected number of values for parameters, fields, or arguments is not provided in input, or if those values are undefined.
| Link | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2024-0607 | third party advisory vdb entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=2258635 | patch third party advisory issue tracking |
| https://github.com/torvalds/linux/commit/c301f0981fdd3fd1ffac6836b423c4d7a8e0eb63 | patch |
| https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html | |
| https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html |