USN-4487-2: libx11 vulnerabilities
8 September 2020
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 package versions:
After a standard system update you need to reboot your computer to make all
the necessary changes.
- USN-4487-1: libx11-6-udeb, libx11-data, libx11-6, libx11-doc, libx11, libx11-xcb-dev, libx11-dev, libx11-xcb1