#VU104805 Buffer overflow in Linux kernel - CVE-2022-49140
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104805
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49140
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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