SB2025022737 - Memory leak in Linux kernel ipv6
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022737
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2025-21768)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the seg6_output_core() function in net/ipv6/seg6_iptunnel.c, within the rpl_output() function in net/ipv6/rpl_iptunnel.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4c0f200c7d06fedddde82209c099014d63f4a6c0
- https://git.kernel.org/stable/c/5ab11a4e219e93b8b31a27f8ec98d42afadd8b7a
- https://git.kernel.org/stable/c/92191dd1073088753821b862b791dcc83e558e07
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14