#VU90085 Use-after-free in Linux kernel - CVE-2020-36788
Published: May 31, 2024 / Updated: May 14, 2025
Vulnerability identifier: #VU90085
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-2020-36788
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 nouveau_gem_new() function in drivers/gpu/drm/nouveau/nouveau_gem.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/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96
- https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d
- https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15