[USN-5301-2] Cyrus SASL vulnerability

Leonidas S. Barbosa leo.barbosa at canonical.com
Tue Feb 22 22:40:30 UTC 2022

Ubuntu Security Notice USN-5301-2
February 22, 2022

cyrus-sasl2 vulnerability

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

- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM


Cyrus SASL could run programs if it received specially crafted network

Software Description:
- cyrus-sasl2: Cyrus Simple Authentication and Security Layer


USN-5301-1 fixed a vulnerability in Cyrus. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory details:

 It was discovered that the Cyrus SASL SQL plugin incorrectly handled SQL
 input. A remote attacker could use this issue to execute arbitrary SQL

Update instructions:

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

Ubuntu 16.04 ESM:
  libsasl2-modules-sql            2.1.26.dfsg1-14ubuntu0.2+esm1

Ubuntu 14.04 ESM:
  libsasl2-modules-sql            2.1.25.dfsg1-17ubuntu0.1~esm2

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

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