USN-3267-1: Samba vulnerability

25 April 2017

samba vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 17.04

Summary

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

Software Description

  • 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.

Update instructions

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

Ubuntu 17.04
samba - 2:4.5.8+dfsg-0ubuntu0.17.04.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.

References