SB2024040434 - Privilege escalation in Linux kernel netfilter nf_tables
Published: April 4, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024040434
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) Race condition (CVE-ID: CVE-2024-26643)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the nf_tables_unbind_set() function in net/netfilter/nf_tables_api.c. A local user can exploit the race and escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/552705a3650bbf46a22b1adedc1b04181490fc36
- https://git.kernel.org/stable/c/406b0241d0eb598a0b330ab20ae325537d8d8163
- https://git.kernel.org/stable/c/b2d6f9a5b1cf968f1eaa71085ceeb09c2cb276b1
- https://git.kernel.org/stable/c/5224afbc30c3ca9ba23e752f0f138729b2c48dd8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.12