[USN-4487-2] libx11 vulnerabilities
Leonidas S. Barbosa
leo.barbosa at canonical.com
Tue Sep 8 16:53:31 UTC 2020
Ubuntu Security Notice USN-4487-2
September 08, 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Several security issues were fixed in libx11.
- libx11: None
USN-4487-1 fixed several vulnerabilities in libx11. This update provides
the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM.
Original advisory details:
Todd Carson discovered that libx11 incorrectly handled certain memory
operations. A local attacker could possibly use this issue to escalate
Jayden Rivers discovered that libx11 incorrectly handled locales. A local
attacker could possibly use this issue to escalate privileges.
The problem can be corrected by updating your system to the following
Ubuntu 14.04 ESM:
Ubuntu 12.04 ESM:
After a standard system update you need to reboot your computer to make all
the necessary changes.
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