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EUVD-2023-44410 · Published Sep 6, 2023
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
Technologies
Linux Linux KernelDebian Debian LinuxCanonical Ubuntu Linux
Weaknesses
CWE-416
CVSS scores
- v3.17.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
MITRE ATT&CK
InferredWhere this vulnerability fits in an attack
Privilege Escalation
References
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8
- https://kernel.dance/6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8
- https://www.debian.org/security/2023/dsa-5492
Potentially impacted assets
See if this affects your attack surface
