Ubuntu Security Notice 3282-1 - It was discovered that FreeType did not correctly handle certain malformed font files. If a user were tricked into using a specially crafted font file, a remote attacker could cause FreeType to crash, resulting in a denial of service, or possibly execute arbitrary code.
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Ubuntu Security Notice USN-3282-1
May 09, 2017
freetype vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
FreeType could be made to crash or run programs if it opened a specially
crafted font file.
Software Description:
- freetype: FreeType 2 is a font engine library
Details:
It was discovered that FreeType did not correctly handle certain malformed
font files. If a user were tricked into using a specially crafted font
file, a remote attacker could cause FreeType 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:
libfreetype6 2.6.3-3ubuntu2.2
Ubuntu 16.10:
libfreetype6 2.6.3-3ubuntu1.3
Ubuntu 16.04 LTS:
libfreetype6 2.6.1-0.1ubuntu2.3
Ubuntu 14.04 LTS:
libfreetype6 2.5.2-1ubuntu2.8
After a standard system update you need to restart your session to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-3282-1
CVE-2017-8105, CVE-2017-8287
Package Information:
https://launchpad.net/ubuntu/+source/freetype/2.6.3-3ubuntu2.2
https://launchpad.net/ubuntu/+source/freetype/2.6.3-3ubuntu1.3
https://launchpad.net/ubuntu/+source/freetype/2.6.1-0.1ubuntu2.3
https://launchpad.net/ubuntu/+source/freetype/2.5.2-1ubuntu2.8