USN-3426-1: Samba vulnerabilities
21 September 2017
Samba could be made to expose sensitive information over the network.
Releases
Packages
- samba - SMB/CIFS file, print, and login server for Unix
Details
Stefan Metzmacher discovered that Samba incorrectly enforced SMB signing in
certain situations. A remote attacker could use this issue to perform a
machine-in-the-middle attack. (CVE-2017-12150)
Stefan Metzmacher discovered that Samba incorrectly handled encryption
across DFS redirects. A remote attacker could use this issue to perform a
machine-in-the-middle attack. (CVE-2017-12151)
Yihan Lian and Zhibin Hu discovered that Samba incorrectly handled memory
when SMB1 is being used. A remote attacker could possibly use this issue to
obtain server memory contents. (CVE-2017-12163)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04
Ubuntu 16.04
Ubuntu 14.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3426-2: samba