USN-3962-1: libpng vulnerability

libpng1.6 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.10
• Ubuntu 18.04 LTS

Summary

libpng be made to crash or run programs if it opened a specially crafted file.

Software Description

• libpng1.6 - PNG (Portable Network Graphics) file library

Details

It was discovered that libpng incorrectly handled certain memory operations. If a user or automated system were tricked into opening a specially crafted PNG file, a remote attacker could use this issue to cause libpng 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 18.10

libpng16-16 - 1.6.34-2ubuntu0.1

Ubuntu 18.04 LTS

libpng16-16 - 1.6.34-1ubuntu0.18.04.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2019-7317

from Ubuntu Security Notices http://bit.ly/2LeRxtM