SB20240531133 - Use-after-free in Linux kernel ipv4
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531133
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-2024-26804)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tnl_update_pmtu(), ip_md_tunnel_xmit() and ip_tunnel_xmit() functions in net/ipv4/ip_tunnel.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/f81e94d2dcd2397137edcb8b85f4c5bed5d22383
- https://git.kernel.org/stable/c/2e95350fe9db9d53c701075060ac8ac883b68aee
- https://git.kernel.org/stable/c/afec0c5cd2ed71ca95a8b36a5e6d03333bf34282
- https://git.kernel.org/stable/c/ab63de24ebea36fe73ac7121738595d704b66d96
- https://git.kernel.org/stable/c/a0a1db40b23e8ff86dea2786c5ea1470bb23ecb9
- https://git.kernel.org/stable/c/049d7989c67e8dd50f07a2096dbafdb41331fb9b
- https://git.kernel.org/stable/c/5ae1e9922bbdbaeb9cfbe91085ab75927488ac0f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.212
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.151
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.271
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8