SB20250226293 - Use-after-free in Linux kernel lz4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226293
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-2022-49078)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the LZ4_decompress_generic() function in lib/lz4/lz4_decompress.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/467d5e200ab4486b744fe1776154a43d1aa22d4b
- https://git.kernel.org/stable/c/6adc01a7aa37445dafe8846faa0610a86029b253
- https://git.kernel.org/stable/c/73953dfa9d50e5c9fe98ee13fd1d3427aa12a0a3
- https://git.kernel.org/stable/c/9fb8bc6cfc58773ce95414e11c9ccc8fc6ac4927
- https://git.kernel.org/stable/c/e64dbe97c05c769525cbca099ddbd22485630235
- https://git.kernel.org/stable/c/eafc0a02391b7b36617b36c97c4b5d6832cf5e24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.111
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.34
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.189