USN-3242-2: Samba regression

30 March 2017

USN-3242-1 introduced a regression in Samba.

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Releases

Packages

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

Details

USN-3242-1 fixed a vulnerability in Samba. The upstream fix introduced a
regression when Samba is configured to disable following symbolic links.

This update fixes the problem.

Original advisory 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.

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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.

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Update instructions

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

Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04

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

References

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