#VU104802 Buffer overflow in Linux kernel - CVE-2022-49058
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104802
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-2022-49058
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 parse_mf_symlink() function in fs/cifs/link.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/1316c28569a80ab3596eeab05bf5e01991e7e739
- https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186
- https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2
- https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05
- https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0
- https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304
- https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee
- https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.239