#VU87593 Use-after-free in Linux kernel - CVE-2023-52438
Published: March 18, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU87593
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-2023-52438
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 binder_alloc_free_page() function in drivers/android/binder_alloc.c. A local user can trigger a race condition and escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/a53e15e592b4dcc91c3a3b8514e484a0bdbc53a3
- https://git.kernel.org/stable/c/c8c1158ffb007197f31f9d9170cf13e4f34cbb5c
- https://git.kernel.org/stable/c/8ad4d580e8aff8de2a4d57c5930fcc29f1ffd4a6
- https://git.kernel.org/stable/c/9fa04c93f24138747807fe75b5591bb680098f56
- https://git.kernel.org/stable/c/a49087ab93508b60d9b8add91707a22dda832869
- https://git.kernel.org/stable/c/e074686e993ff1be5f21b085a3b1b4275ccd5727
- https://git.kernel.org/stable/c/3f489c2067c5824528212b0fc18b28d51332d906
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.148
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.268
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.74
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.1
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8