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[USN-550-3] Cairo regression

Ubuntu Security Notice USN-550-3          December 13, 2007
libcairo regression
Bug 175573
Kwetsbare Ubuntu versies:

Ubuntu 6.06 LTS
Ubuntu 6.10
Ubuntu 7.04
Ubuntu 7.10

Kwetsbare pakketten:

Ubuntu 6.06 LTS
libcairo2 1.0.4-0ubuntu1.2
Ubuntu 6.10
libcairo2 1.2.4-1ubuntu2.2
Ubuntu 7.10
libcairo2 1.4.10-1ubuntu4.4
Ubuntu 7.04
libcairo2 1.4.2-0ubuntu1.3

After a standard system upgrade you need to restart your session to effect the necessary changes.

USN-550-1 fixed vulnerabilities in Cairo. A bug in font glyph rendering was uncovered as a result of the new memory allocation routines. In certain situations, fonts containing characters with no width or height would not render any more. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Peter Valchev discovered that Cairo did not correctly decode PNG image data. By tricking a user or automated system into processing a specially crafted PNG with Cairo, a remote attacker could execute arbitrary code with user privileges.

Ubuntu