UBUNTU-CVE-2024-0607
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.
02 / AFFECTED SOFTWARE
Affected packages
25 explicit affected versions
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26 explicit affected versions
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1 explicit affected versions
38 explicit affected versions
5 explicit affected versions
43 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/c301f0981fdd3fd1ffac6836b423c4d7a8e0eb63
- https://lore.kernel.org/netfilter-devel/[email protected]/T/#mcc88bddfc9fd205cf6800bd9f68e11c4562cdbcc
- https://ubuntu.com/security/CVE-2024-0607
- https://ubuntu.com/security/notices/USN-6639-1
- https://ubuntu.com/security/notices/USN-6680-1
- https://ubuntu.com/security/notices/USN-6680-2
- https://ubuntu.com/security/notices/USN-6680-3
- https://ubuntu.com/security/notices/USN-6686-1
- https://ubuntu.com/security/notices/USN-6686-2
- https://ubuntu.com/security/notices/USN-6686-3
- https://ubuntu.com/security/notices/USN-6686-4
- https://ubuntu.com/security/notices/USN-6686-5
- https://ubuntu.com/security/notices/USN-6705-1
- https://ubuntu.com/security/notices/USN-6726-1
- https://ubuntu.com/security/notices/USN-6726-2
- https://ubuntu.com/security/notices/USN-6726-3
- https://www.cve.org/CVERecord?id=CVE-2024-0607