Ubuntu Security Notice USN-2927-1
14th March, 2016
graphite2 vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 15.10
- Ubuntu 14.04 LTS
Summary
graphite2 could be made to crash or run programs as your login if it opened
a specially crafted font.
Software description
- graphite2
– Font rendering engine for Complex Scripts
Details
It was 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 version:
- Ubuntu 15.10:
-
libgraphite2-3
1.3.6-1ubuntu0.15.10.1
- Ubuntu 14.04 LTS:
-
libgraphite2-3
1.3.6-1ubuntu0.14.04.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
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.