USN-3309-1: Libtasn1 vulnerability

Releases

• Ubuntu 17.04
• Ubuntu 16.10
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• libtasn1-6 - 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 17.04

• libtasn1-6 - 4.10-1ubuntu0.1

Ubuntu 16.10

• libtasn1-6 - 4.9-4ubuntu0.1

Ubuntu 16.04

• libtasn1-6 - 4.7-3ubuntu0.16.04.2

Ubuntu 14.04

• libtasn1-6 - 3.4-3ubuntu0.5

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

References

• CVE-2017-6891

Related notices

• USN-3309-2: libtasn1-3