SB20250226716 - Buffer overflow in Linux kernel ext4
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226716
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) Buffer overflow (CVE-ID: CVE-2022-49343)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the dx_probe() function in fs/ext4/namei.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/24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3
- https://git.kernel.org/stable/c/3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc
- https://git.kernel.org/stable/c/3ba733f879c2a88910744647e41edeefbc0d92b2
- https://git.kernel.org/stable/c/6084240bfc44bf265ab6ae7d96980469b05be0f1
- https://git.kernel.org/stable/c/b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0
- https://git.kernel.org/stable/c/d5a16a6df2c16eaf4de04948553ef0089dee463f
- https://git.kernel.org/stable/c/e157c8f87e8fac112d6c955e69a60cdb9bc80a60
- https://git.kernel.org/stable/c/ff4cafa51762da3824881a9000ca421d4b78b138
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121