USN-3712-1: libpng vulnerabilities

Releases

• Ubuntu 18.04 LTS
• Ubuntu 17.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libpng - PNG (Portable Network Graphics) file library
• libpng1.6 - PNG library - development (version 1.6)

Details

Patrick Keshishian discovered that libpng incorrectly handled certain PNG files.
An attacker could possibly use this to cause a denial of service. This issue
only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10087)

Thuan Pham discovered that libpng incorrectly handled certain PNG files.
An attacker could possibly use this to cause a denial of service.
This issue only affected Ubuntu 17.10 and Ubuntu 18.04 LTS.
(CVE-2018-13785)

Update instructions

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

Ubuntu 18.04

• libpng16-16 - 1.6.34-1ubuntu0.18.04.1

Ubuntu 17.10

• libpng16-16 - 1.6.34-1ubuntu0.17.10.1

Ubuntu 16.04

• libpng12-0 - 1.2.54-1ubuntu1.1

Ubuntu 14.04

• libpng12-0 - 1.2.50-1ubuntu2.14.04.3

In general, a standard system update will make all the necessary changes.

References

• CVE-2016-10087
• CVE-2018-13785

Related notices

• USN-3712-2: libpng12-0, libpng