USN-3309-2: Libtasn1 vulnerability

18 July 2017

libtasn1-3 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 ESM

Summary

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

Software Description

  • libtasn1-3 - Library to manage ASN.1 structures

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.

Update instructions

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

Ubuntu 12.04 ESM
libtasn1-3 - 2.10-1ubuntu1.6

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