USN-3394-1: libmspack vulnerabilities

17 August 2017

libmspack vulnerabilities

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

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS

Summary

Several security issues were fixed in libmspack.

Software Description

  • libmspack - library for Microsoft compression formats

Details

It was discovered that libmspack incorrectly handled certain malformed CHM files. A remote attacker could use this issue to cause libmspack to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-6419)

It was discovered that libmspack incorrectly handled certain malformed CAB files. A remote attacker could use this issue to cause libmspack to crash, resulting in a denial of service. (CVE-2017-6419)

Update instructions

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

Ubuntu 17.04
libmspack0 - 0.5-1ubuntu0.17.04.1
Ubuntu 16.04 LTS
libmspack0 - 0.5-1ubuntu0.16.04.1

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