Ubuntu Security Notice USN-4593-1

Ubuntu Security Notice USN-4593-1
October 20, 2020

freetype vulnerability
A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS


FreeType could be made to crash or run programs as your login if it
opened a specially crafted file.

Software Description:
– freetype: FreeType 2 is a font engine library


Sergei Glazunov discovered that FreeType did not correctly handle certain
malformed font files. If a user were tricked into using a specially crafted
font file, a remote attacker could cause FreeType to crash or possibly
execute arbitrary code with user privileges.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS:
libfreetype6 2.10.1-2ubuntu0.1

Ubuntu 18.04 LTS:
libfreetype6 2.8.1-2ubuntu2.1

Ubuntu 16.04 LTS:
libfreetype6 2.6.1-0.1ubuntu2.5

After a standard system update you need to restart your session to make
all the necessary changes.


Package Information: