USN-3242-1: Samba vulnerability

Publication date

23 March 2017

Overview

Samba could be made to expose sensitive information over the network.


Packages

  • samba - SMB/CIFS file, print, and login server for Unix

Details

Jann Horn discovered that Samba incorrectly handled symlinks. An
authenticated remote attacker could use this issue to access files on the
server outside of the exported directories.

Jann Horn discovered that Samba incorrectly handled symlinks. An
authenticated remote attacker could use this issue to access files on the
server outside of the exported directories.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.10 yakkety samba –  2:4.4.5+dfsg-2ubuntu5.4
16.04 xenial samba –  2:4.3.11+dfsg-0ubuntu0.16.04.5
14.04 trusty samba –  2:4.3.11+dfsg-0ubuntu0.14.04.6
12.04 precise samba –  2:3.6.25-0ubuntu0.12.04.9

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

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