#VU63382 Use-after-free in Linux kernel - CVE-2021-20292

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Main Vulnerability Database Vulnerabilities #VU63382

#VU63382 Use-after-free in Linux kernel - CVE-2021-20292

Published: May 18, 2022 / Updated: May 19, 2022


Vulnerability identifier: #VU63382
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-20292
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to a use-after-free error in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. A local user can escalate privileges and execute code in the context of the kernel.


Remediation

Install updates from vendor's website.

External links