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[USN-2986-1] dosfstools vulnerabilities



==========================================================================
Ubuntu Security Notice USN-2986-1
May 31, 2016

dosfstools vulnerabilities
==========================================================================

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

- Ubuntu 16.04 LTS
- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

dosfstools could be made to crash or run programs if it processed a
specially crafted filesystem.

Software Description:
- dosfstools: utilities for making and checking MS-DOS FAT filesystems

Details:

Hanno Böck discovered that dosfstools incorrectly handled certain malformed
filesystems. A local attacker could use this issue to cause dosfstools to
crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions:

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

Ubuntu 16.04 LTS:
  dosfstools                      3.0.28-2ubuntu0.1

Ubuntu 15.10:
  dosfstools                      3.0.28-1ubuntu0.1

Ubuntu 14.04 LTS:
  dosfstools                      3.0.26-1ubuntu0.1

Ubuntu 12.04 LTS:
  dosfstools                      3.0.12-1ubuntu1.3

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

References:
  http://www.ubuntu.com/usn/usn-2986-1
  CVE-2015-8872, CVE-2016-4804

Package Information:
  https://launchpad.net/ubuntu/+source/dosfstools/3.0.28-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/dosfstools/3.0.28-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/dosfstools/3.0.26-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/dosfstools/3.0.12-1ubuntu1.3


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