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Ubuntu Security Notice USN-2927-1
March 14, 2016

graphite2 vulnerabilities
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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 versions:

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

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.

References:
http://www.ubuntu.com/usn/usn-2927-1
CVE-2016-1977, CVE-2016-2790, CVE-2016-2791, CVE-2016-2792,
CVE-2016-2793, CVE-2016-2794, CVE-2016-2795, CVE-2016-2796,
CVE-2016-2797, CVE-2016-2798, CVE-2016-2799, CVE-2016-2800,
CVE-2016-2801, CVE-2016-2802

Package Information:
https://launchpad.net/ubuntu/+source/graphite2/1.3.6-1ubuntu0.15.10.1
https://launchpad.net/ubuntu/+source/graphite2/1.3.6-1ubuntu0.14.04.1

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