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AUSCERT External Security Bulletin Redistribution
ESB-2018.2245
libmspack vulnerabilities
2 August 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: libmspack
Publisher: Ubuntu
Operating System: Ubuntu
Linux variants
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-14682 CVE-2018-14681 CVE-2018-14680
CVE-2018-14679
Original Bulletin:
http://www.ubuntu.com/usn/usn-3728-1
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-3728-1: libmspack vulnerabilities
1 August 2018
libmspack vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS
Summary
Several security issues were fixed in libmspack.
Software Description
libmspack - library for Microsoft compression formats
Details
Hanno Bck discovered that libmspack incorrectly handled certain CHM files. An
attacker could possibly use this issue to cause a denial of service.
(CVE-2018-14679, CVE-2018-14680)
Jakub Wilk discovered that libmspack incorrectly handled certain KWAJ files.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-14681)
Dmitry Glavatskikh discovered that libmspack incorrectly certain CHM files. An
attacker could possibly use this issue to execute arbitrary code.
(CVE-2018-14682)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04 LTS
libmspack0 - 0.6-3ubuntu0.1
Ubuntu 16.04 LTS
libmspack0 - 0.5-1ubuntu0.16.04.2
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-2018-14679
CVE-2018-14680
CVE-2018-14681
CVE-2018-14682
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