#VU63322 Use-after-free in Linux kernel - CVE-2020-27820

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Main Vulnerability Database Vulnerabilities #VU63322

#VU63322 Use-after-free in Linux kernel - CVE-2020-27820

Published: May 17, 2022 / Updated: June 2, 2022


Vulnerability identifier: #VU63322
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27820
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 execute arbitrary code with elevated privileges.

The vulnerability exists due to a use-after-free error in nouveau's postclose() handler. A local user can send specially crafted data to the system and execute arbitrary code with elevated privileges.


Remediation

Install updates from vendor's website.

External links