USN-960-1: libpng vulnerabilities

Releases

• Ubuntu 10.04
• Ubuntu 9.10
• Ubuntu 9.04
• Ubuntu 8.04
• Ubuntu 6.06

Packages

• libpng -

Details

It was discovered that libpng did not properly handle certain malformed PNG
images. If a user or automated system were tricked into opening a crafted
PNG file, an attacker could cause a denial of service or possibly execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2010-1205)

It was discovered that libpng did not properly handle certain malformed PNG
images. If a user or automated system were tricked into processing a
crafted PNG image, an attacker could possibly use this flaw to consume all
available resources, resulting in a denial of service. (CVE-2010-2249)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 9.10

• libpng12-0 - 1.2.37-1ubuntu0.2

Ubuntu 9.04

• libpng12-0 - 1.2.27-2ubuntu2.2

Ubuntu 8.04

• libpng12-0 - 1.2.15~beta5-3ubuntu0.3

Ubuntu 6.06

• libpng12-0 - 1.2.8rel-5ubuntu0.6

Ubuntu 10.04

• libpng12-0 - 1.2.42-1ubuntu2.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• CVE-2010-2249
• CVE-2010-1205

Related notices

• USN-957-1: abrowser, firefox-3.0, firefox, xulrunner-1.9.2
• USN-930-4: abrowser, firefox-3.0, firefox-3.5, xulrunner-1.9.2
• USN-958-1: thunderbird