USN-4341-3: Samba regression

29 April 2020

USN-4341-1 introduced a regression in Samba.



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


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

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