1. Ubuntu Security Notices
  2. USN-2957-1

USN-2957-1: Libtasn1 vulnerability

Publication date

2 May 2016

Overview

Libtasn1 could be made to hang if it processed specially crafted data.

Releases

Packages

Details

Pascal Cuoq and Miod Vallat discovered that Libtasn1 incorrectly handled
certain malformed DER certificates. A remote attacker could possibly use
this issue to cause applications using Libtasn1 to hang, resulting in a
denial of service.

Pascal Cuoq and Miod Vallat discovered that Libtasn1 incorrectly handled
certain malformed DER certificates. A remote attacker could possibly use
this issue to cause applications using Libtasn1 to hang, resulting in a
denial of service.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.10 wily libtasn1-6 –  4.5-2ubuntu0.1
14.04 trusty libtasn1-6 –  3.4-3ubuntu0.4
12.04 precise libtasn1-3 –  2.10-1ubuntu1.5

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References

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