1. Ubuntu Security Notices
  2. USN-3309-1

USN-3309-1: Libtasn1 vulnerability

Publication date

5 June 2017

Overview

Libtasn1 could be made to crash or run programs as your login if it opened a specially crafted file.

Releases

Packages

Details

Jakub Jirasek discovered that GnuTLS incorrectly handled certain
assignments files. If a user were tricked into processing a specially
crafted assignments file, a remote attacker could possibly execute arbirary
code.

Jakub Jirasek discovered that GnuTLS incorrectly handled certain
assignments files. If a user were tricked into processing a specially
crafted assignments file, a remote attacker could possibly execute arbirary
code.

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
17.04 zesty libtasn1-6 –  4.10-1ubuntu0.1
16.10 yakkety libtasn1-6 –  4.9-4ubuntu0.1
16.04 xenial libtasn1-6 –  4.7-3ubuntu0.16.04.2
14.04 trusty libtasn1-6 –  3.4-3ubuntu0.5

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›