Ubuntu Security Update USN-3296-1: Samba vulnerability

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Ubuntu Security Notice USN-3296-1


24th May, 2017

samba vulnerability


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

  • Ubuntu 17.04
  • Ubuntu 16.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS
Summary


Samba could be made to run programs as an administrator.

Software description

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


It was discovered that Samba incorrectly handled shared libraries. A remote
attacker could use this flaw to upload a shared library to a writable share
and execute arbitrary code.

Update instructions


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

Ubuntu 17.04:
samba 2:4.5.8+dfsg-0ubuntu0.17.04.2
Ubuntu 16.10:
samba 2:4.4.5+dfsg-2ubuntu5.6
Ubuntu 16.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.16.04.7
Ubuntu 14.04 LTS:
samba 2:4.3.11+dfsg-0ubuntu0.14.04.8

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

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

References


CVE-2017-7494

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