#VU84372 Out-of-bounds write in X.org Server and Xwayland - CVE-2023-6377

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Main Vulnerability Database Vulnerabilities #VU84372

#VU84372 Out-of-bounds write in X.org Server and Xwayland - CVE-2023-6377

Published: December 13, 2023 / Updated: January 5, 2024


Vulnerability identifier: #VU84372
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-2023-6377
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
X.org Server
Xwayland
Software vendor:
X.org

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the XKB button handler when switching logical input devices. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


Remediation

Install updates from vendor's website.

External links