USN-3814-1: libmspack vulnerabilities

12 November 2018

libmspack vulnerabilities

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

  • Ubuntu 18.10
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS


Several security issues were fixed in libmspack.

Software Description

  • libmspack - library for Microsoft compression formats


It was discovered 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-2018-18584, CVE-2018-18585)

Update instructions

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

Ubuntu 18.10
libmspack0 - 0.7-1ubuntu0.1
Ubuntu 18.04 LTS
libmspack0 - 0.6-3ubuntu0.2
Ubuntu 16.04 LTS
libmspack0 - 0.5-1ubuntu0.16.04.3

To update your system, please follow these instructions:

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