USN-4341-3: Samba regression
29 April 2020
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
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)
The problem can be corrected by updating your system to the following package versions:
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.