SB2020082802 - Gentoo update for X.Org X11 library

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Integer overflow (CVE-ID: CVE-2020-14344)

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

The vulnerability exists due to integer overflow in the X Input Method (XIM) client in libX11. A local user can run a specially crafted program, trigger integer overflow and execute arbitrary code on the system with elevated privileges.

2) Double Free (CVE-ID: CVE-2020-14363)

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 update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/202008-18