USN-1988-1: Cyrus SASL vulnerability

Ubuntu Security Notice USN-1988-1

9th October, 2013

cyrus-sasl2 vulnerability

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

  • Ubuntu 13.04


Cyrus SASL could be made to crash if it processed specially crafted input.

Software description

  • cyrus-sasl2 - Cyrus Simple Authentication and Security Layer


It was discovered that Cyrus SASL incorrectly handled certain invalid
password salts. An attacker could use this issue to cause Cyrus SASL to
crash, resulting in a denial of service.

Update instructions

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

Ubuntu 13.04:
libsasl2-2 2.1.25.dfsg1-6ubuntu0.1

To update your system, please follow these instructions:

After a standard system update you need to reboot your computer to make all
the necessary changes.