Vulnerabilities > CVE-2023-6111 - Use After Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The function nft_trans_gc_catchall did not remove the catchall set element from the catchall_list when the argument sync is true, making it possible to free a catchall set element many times. We recommend upgrading past commit 93995bf4af2c5a99e2a87f0cd5ce547d31eb7630.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
- https://kernel.dance/93995bf4af2c5a99e2a87f0cd5ce547d31eb7630
- https://lists.fedoraproject.org/archives/list/[email protected]/message/IG6IF3FUY7LVZJMFRPANAU4L4PSJ3ESQ/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/YQ7JVDEDZV5SNHG5EW7RHKK2ZN56HSGB/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/3S55P23EYAWDHXZPJEVTGIRZZRICYI3Z/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/3OXWBKK7RTQOGGDLQGCZFS753VLGS2GD/