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AUSCERT External Security Bulletin Redistribution
ESB-2019.2717
USN-4066-1: libmspack vulnerability
22 July 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: libmspack
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-1010305
Original Bulletin:
https://usn.ubuntu.com/4066-1/
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running libmspack check for an updated version of the software for
their operating system.
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USN-4066-1: libmspack vulnerability
18 July 2019
libmspack vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
libmspack could be made to expose sensitive information if it received a
specially crafted CHM file.
Software Description
o libmspack - library for Microsoft compression formats
Details
It was discovered that libmspack incorrectly handled certain CHM files. A
remote attacker could possibly use this issue to access sensitive information.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
libmspack0 - 0.6-3ubuntu0.3
Ubuntu 16.04 LTS
libmspack0 - 0.5-1ubuntu0.16.04.4
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
o CVE-2019-1010305
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