#VU46027 Double Free in libx11 - CVE-2020-14363
Published: August 25, 2020
Vulnerability identifier: #VU46027
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-2020-14363
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
libx11
libx11
Software vendor:
xorg.freedesktop.org
xorg.freedesktop.org
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error when handling locales in LibX11. A local user can run a specially crafted program to trigger integer overflow and double free and execute arbitrary code on the system with elevated privileges.
Remediation
Install updates from vendor's website.