#VU90065 Use-after-free in Linux kernel - CVE-2023-52741
Published: May 30, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90065
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-2023-52741
CWE-ID: CWE-416
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 a use-after-free error within the uncached_fill_pages() and readpages_fill_pages() functions in fs/cifs/file.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/2b693fe3f760c87fd9768e759f6297f743a1b3b0
- https://git.kernel.org/stable/c/d1fba1e096ffc7ec11df863a97c50203c47315b9
- https://git.kernel.org/stable/c/3684a2f6affa1ca52a5d4a12f04d0652efdee65e
- https://git.kernel.org/stable/c/aa5465aeca3c66fecdf7efcf554aed79b4c4b211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.94
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2