SB2024082215 - Use-after-free in Linux kernel netfilter
Published: August 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082215
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-48912)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nf_register_net_hook() function in net/netfilter/core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/05f7927b25d2635e87267ff6c79db79fb46cf313
- https://git.kernel.org/stable/c/bdd8fc1b826e6f23963f5bef3f7431c6188ec954
- https://git.kernel.org/stable/c/49c24579cec41e32f13d57b337fd28fb208d4a5b
- https://git.kernel.org/stable/c/8b0142c4143c1ca297dcf2c0cdd045d65dae2344
- https://git.kernel.org/stable/c/bd61f192a339b1095dfd6d56073a5265934c2979
- https://git.kernel.org/stable/c/5a8076e98dde17224dd47283b894a8b1dbe1bc72
- https://git.kernel.org/stable/c/56763f12b0f02706576a088e85ef856deacc98a0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.270
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.233
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.104
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.183