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AUSCERT External Security Bulletin Redistribution
ESB-2017.2208
Liblouis vulnerabilities
5 September 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Liblouis
Publisher: Ubuntu
Operating System: Ubuntu
Linux variants
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-13744 CVE-2017-13742 CVE-2017-13740
CVE-2017-13739 CVE-2017-13738
Original Bulletin:
http://www.ubuntu.com/usn/usn-3408-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running Liblouis check for an updated version of the software for
their operating system.
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Ubuntu Security Notice USN-3408-1
September 04, 2017
liblouis vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 17.04
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Liblouis.
Software Description:
- - liblouis: Braille translation library - utilities
Details:
It was discovered that an illegal address access can be made in
Liblouis. A remote attacker can take advantange of this to
access sensitive information. (CVE-2017-13738, CVE-2017-13744)
It was discovered a heap-based buffer overflow that causes bytes
out-of-bounds write in Liblouis. A remote attacker can use this to
denial of service or remote code execution. (CVE-2017-13739)
It was discovered a stack-based buffer overflow in Liblouis. A remote
attacker can use this to denial of service or possibly unspecified
other impact. (CVE-2017-13740, CVE-2017-13742)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.04:
 liblouis-bin 3.0.0-3ubuntu0.2
 liblouis12 3.0.0-3ubuntu0.2
 python-louis 3.0.0-3ubuntu0.2
 python3-louis 3.0.0-3ubuntu0.2
Ubuntu 16.04 LTS:
 liblouis-bin 2.6.4-2ubuntu0.1
 liblouis9 2.6.4-2ubuntu0.1
 python-louis 2.6.4-2ubuntu0.1
 python3-louis 2.6.4-2ubuntu0.1
Ubuntu 14.04 LTS:
 liblouis-bin 2.5.3-2ubuntu1.1
 liblouis2 2.5.3-2ubuntu1.1
 python-louis 2.5.3-2ubuntu1.1
 python3-louis 2.5.3-2ubuntu1.1
In general, a standard system update will make all the necessary
changes.
References:
 https://www.ubuntu.com/usn/usn-3408-1
 CVE-2017-13738, CVE-2017-13739, CVE-2017-13740, CVE-2017-13742,
 CVE-2017-13744
Package Information:
 https://launchpad.net/ubuntu/+source/liblouis/3.0.0-3ubuntu0.2
 https://launchpad.net/ubuntu/+source/liblouis/2.6.4-2ubuntu0.1
 https://launchpad.net/ubuntu/+source/liblouis/2.5.3-2ubuntu1.1
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