Use-after-free in Linux kernel - CVE-2023-35829
Published: July 14, 2023
Vulnerability identifier: #VU78264
CSH Severity: Low
CVSS v4.0: 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-2023-35829
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 rkvdec_remove() function in drivers/staging/media/rkvdec/rkvdec.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
How to mitigate CVE-2023-35829
Install updates from vendor's website.
Sources
- https://lore.kernel.org/lkml/20230307173900.1299387-1-zyytlz.wz@163.com/T/
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3228cec23b8b29215e18090c6ba635840190993d
- https://lore.kernel.org/all/a4dafa22-3ee3-dbe1-fd50-fee07883ce1a@xs4all.nl/
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2