Ubuntu Security Notice USN-2604-1
11th May, 2015
libtasn1-3, libtasn1-6 vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu (vivid)
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Libtasn1 could be made to crash or run programs if it processed specially
crafted data.
Software description
- 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 version:
- Ubuntu (vivid):
-
libtasn1-6
4.2-2ubuntu1.1
- Ubuntu 14.10:
-
libtasn1-6
4.0-2ubuntu0.2
- Ubuntu 14.04 LTS:
-
libtasn1-6
3.4-3ubuntu0.3
- Ubuntu 12.04 LTS:
-
libtasn1-3
2.10-1ubuntu1.4
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.