USN-3526-1: SSSD vulnerability

10 January 2018

sssd vulnerability

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

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS


SSSD could be made to expose sensitive information.

Software Description

  • sssd - System Security Services Daemon – metapackage


It was discovered that SSSD incorrectly handled certain inputs when querying its local cache. An attacker could use this to inject arbitrary code and expose sensitive information.

Update instructions

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

Ubuntu 17.04
sssd - 1.15.2-1ubuntu1.1
sssd-common - 1.15.2-1ubuntu1.1
sssd-tools - 1.15.2-1ubuntu1.1
Ubuntu 16.04 LTS
sssd - 1.13.4-1ubuntu1.10
sssd-common - 1.13.4-1ubuntu1.10
sssd-tools - 1.13.4-1ubuntu1.10

To update your system, please follow these instructions:

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