USN-1436-1: Libtasn1 vulnerability

Releases

• Ubuntu 12.04
• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.04
• Ubuntu 8.04

Packages

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

Details

Matthew Hall discovered that Libtasn1 incorrectly handled certain large
values. An attacker could exploit this with a specially crafted ASN.1
structure and cause 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 8.04

• libtasn1-3 - 1.1-1ubuntu0.1

Ubuntu 12.04

• libtasn1-3 - 2.10-1ubuntu1.1

Ubuntu 11.10

• libtasn1-3 - 2.9-4ubuntu0.1

Ubuntu 11.04

• libtasn1-3 - 2.7-1ubuntu1.1

Ubuntu 10.04

• libtasn1-3 - 2.4-1ubuntu0.1

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

References

• CVE-2012-1569