Ubuntu Security Notice USN-3827-2
November 27, 2018
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 12.04 ESM
Several security issues were fixed in Samba.
– samba: SMB/CIFS file, print, and login server for Unix
USN-3827-1 fixed a vulnerability in samba. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Florian Stuelpner discovered that Samba incorrectly handled CNAME
records. A remote attacker could use this issue to cause Samba to
crash, resulting in a denial of service. (CVE-2018-14629)
Alex MacCuish discovered that Samba incorrectly handled memory when
configured to accept smart-card authentication. A remote attacker
could possibly use this issue to cause Samba to crash, resulting in a
denial of service. (CVE-2018-16841)
Garming Sam discovered that Samba incorrectly handled memory when
processing LDAP searches. A remote attacker could possibly use this
issue to cause Samba to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following
Ubuntu 12.04 ESM:
In general, a standard system update will make all the necessary
CVE-2018-14629, CVE-2018-16841, CVE-2018-16851