USN-4341-3: Samba regression

29 April 2020

samba regression

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

  • Ubuntu 16.04 LTS

Summary

USN-4341-1 introduced a regression in Samba.

Software Description

  • samba - SMB/CIFS file, print, and login server for Unix

Details

USN-4341-1 fixed vulnerabilities in Samba. The updated packages for Ubuntu 16.04 LTS introduced a regression when using LDAP. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

It was discovered that Samba incorrectly handled certain LDAP queries. A remote attacker could possibly use this issue to cause Samba to consume resources, resulting in a denial of service. (CVE-2020-10704)

Update instructions

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

Ubuntu 16.04 LTS
samba - 2:4.3.11+dfsg-0ubuntu0.16.04.27

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.

References