USN-2604-1: Libtasn1 vulnerability

Releases

• Ubuntu 15.04
• Ubuntu 14.10
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• libtasn1-3 - Library to manage ASN.1 structures
• libtasn1-6 - Library to manage ASN.1 structures

Details

Hanno Böck discovered that Libtasn1 incorrectly handled certain ASN.1 data.
A remote attacker could possibly exploit this with specially crafted ASN.1
data and cause applications using Libtasn1 to crash, resulting in a denial
of service, or possibly execute arbitrary code.

Update instructions

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

Ubuntu 15.04

• libtasn1-6 - 4.2-2ubuntu1.1

Ubuntu 14.10

• libtasn1-6 - 4.0-2ubuntu0.2

Ubuntu 14.04

• libtasn1-6 - 3.4-3ubuntu0.3

Ubuntu 12.04

• libtasn1-3 - 2.10-1ubuntu1.4

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

References

• CVE-2015-3622