Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel. Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed. Lastly, check the genmask of the end interval if this is active in the current generation.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.10.166, < 5.10.190 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/50cbb9d195c197af671869c8cadce3bd483735a0Patch
- https://git.kernel.org/stable/c/8284a79136c384059e85e278da2210b809730287Patch
- https://git.kernel.org/stable/c/893cb3c3513cf661a0ff45fe0cfa83fe27131f76Patch
- https://git.kernel.org/stable/c/89a4d1a89751a0fbd520e64091873e19cc0979e8Patch
- https://git.kernel.org/stable/c/acaee227cf79c45a5d2d49c3e9a66333a462802cPatch
- https://git.kernel.org/stable/c/cd66733932399475fe933cb3ec03e687ed401462Patch
- https://git.kernel.org/stable/c/f718863aca469a109895cb855e6b81fff4827d71Patch
FAQ
What is CVE-2023-53304?
CVE-2023-53304 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release...
How severe is CVE-2023-53304?
CVE-2023-53304 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53304?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.