USN-3398-1: graphite2 vulnerabilities

21 August 2017

graphite2 could be made to crash or run programs if it opened a specially crafted font.



  • graphite2 - Font rendering engine for Complex Scripts


Holger Fuhrmannek and Tyson Smith discovered that graphite2 incorrectly
handled certain malformed fonts. If a user or automated system were tricked
into opening a specially-crafted font file, a remote attacker could use
this issue to cause graphite2 to crash, resulting in a denial of service,
or possibly execute arbitrary code.

Update instructions

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

Ubuntu 17.04
Ubuntu 16.04
Ubuntu 14.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart applications
using graphite2, such as LibreOffice, to make all the necessary changes.

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