SB20250226639 - Buffer overflow in Linux kernel block driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226639
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) Buffer overflow (CVE-ID: CVE-2022-49140)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the nbd_dev_add() and nbd_genl_connect() functions in drivers/block/nbd.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/24781c1b691c60c42748c669973d567a90573337
- https://git.kernel.org/stable/c/3b14aa053181709d42319d4145855025c23ddd12
- https://git.kernel.org/stable/c/7198bfc2017644c6b92d2ecef9b8b8e0363bb5fd
- https://git.kernel.org/stable/c/9d73b40f979737029bac724c39648016da3f914c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.2