USN-3827-1: Samba vulnerabilities
samba vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary
Several security issues were fixed in Samba.
Software Description
- samba – SMB/CIFS file, print, and login server for Unix
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. (CVE-2018-16851)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 18.10
- samba – 2:4.8.4+dfsg-2ubuntu2.1
- Ubuntu 18.04 LTS
- samba – 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
- Ubuntu 16.04 LTS
- samba – 2:4.3.11+dfsg-0ubuntu0.16.04.18
- Ubuntu 14.04 LTS
- samba – 2:4.3.11+dfsg-0ubuntu0.14.04.19
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
Source: USN-3827-1: Samba vulnerabilities
