[USN-3843-2] pixman vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Tue Dec 11 19:09:00 UTC 2018
Ubuntu Security Notice USN-3843-2
December 11, 2018
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
pixman could be made to crash or run programs if it processed specially
- pixman: pixel-manipulation library for X and cairo
USN-3843-1 fixed a vulnerability in pixman. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that pixman incorrectly handled the
general_composite_rect function. A remote attacker could use this
issue to cause pixman to crash, resulting in a denial of service, or
possibly execute arbitrary code.
The problem can be corrected by updating your system to the following
Ubuntu 12.04 ESM:
After a standard system update you need to restart your session to make
all the necessary changes.
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