USN-3353-2: Samba vulnerability
14 July 2017
Samba could allow unintended access to network services.
Releases
Packages
- samba - SMB/CIFS file, print, and login server for Unix
Details
USN-3353-1 fixed a vulnerability in Heimdal. This update provides
the corresponding update for Samba.
Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered
that Samba clients incorrectly trusted unauthenticated portions of
Kerberos tickets. A remote attacker could use this to impersonate
trusted network servers or perform other attacks.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04
Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04
In general, a standard system update will make all the necessary changes.
References
Related notices
- USN-3353-4: samba, libsmbclient
- USN-3353-1: heimdal, heimdal-clients, heimdal-clients-x, libsl0-heimdal, heimdal-multidev, libheimbase1-heimdal, heimdal-docs, heimdal-servers-x, libroken18-heimdal, heimdal-kcm, libkrb5-26-heimdal, libwind0-heimdal, heimdal-servers, heimdal-kdc, libasn1-8-heimdal, libhx509-5-heimdal, libkdc2-heimdal, libgssapi3-heimdal, libkadm5clnt7-heimdal, libhdb9-heimdal, libhcrypto4-heimdal, libotp0-heimdal, heimdal-dev, libkafs0-heimdal, libheimntlm0-heimdal, libkadm5srv8-heimdal
- USN-3353-3: heimdal, libkrb5-26-heimdal