USN-3712-1: libpng vulnerabilities

11 July 2018

Several security issues were fixed in libpng.

Releases

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
Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

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

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