SB2025022748 - Use-after-free in Linux kernel ipv6
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022748
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-2025-21764)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ndisc_alloc_skb() function in net/ipv6/ndisc.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3c2d705f5adf5d860aaef90cb4211c0fde2ba66d
- https://git.kernel.org/stable/c/628e6d18930bbd21f2d4562228afe27694f66da9
- https://git.kernel.org/stable/c/9e0ec817eb41a55327a46cd3ce331a9868d60304
- https://git.kernel.org/stable/c/bbec88e4108e8d6fb468d3817fa652140a44ff28
- https://git.kernel.org/stable/c/cd1065f92eb7ff21b9ba5308a86f33d1670bf926
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.4