============================================================================
Ubuntu Security Notice USN-2278-1
July 15, 2014

file vulnerabilities
============================================================================

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

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

File could be made to crash or hang if it processed specially crafted data.

Software Description:
- file: Tool to determine file types

Details:

Mike Frysinger discovered that the file awk script detector used multiple
wildcard with unlimited repetitions. An attacker could use this issue to
cause file to consume resources, resulting in a denial of service.
(CVE-2013-7345)

Francisco Alonso discovered that file incorrectly handled certain CDF
documents. A attacker could use this issue to cause file to hang or crash,
resulting in a denial of service. (CVE-2014-0207, CVE-2014-3478,
CVE-2014-3479, CVE-2014-3480, CVE-2014-3487)

Jan Kalu=C5=BEa discovered that file did not properly restrict the amount of
data read during regex searches. An attacker could use this issue to
cause file to consume resources, resulting in a denial of service.
(CVE-2014-3538)

Update instructions:

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

Ubuntu 14.04 LTS:
  file                            1:5.14-2ubuntu3.1
  libmagic1                       1:5.14-2ubuntu3.1

Ubuntu 13.10:
  file                            5.11-2ubuntu4.3
  libmagic1                       5.11-2ubuntu4.3

Ubuntu 12.04 LTS:
  file                            5.09-2ubuntu0.4
  libmagic1                       5.09-2ubuntu0.4

Ubuntu 10.04 LTS:
  file                            5.03-5ubuntu1.3
  libmagic1                       5.03-5ubuntu1.3

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

References:
  http://www.ubuntu.com/usn/usn-2278-1
  CVE-2013-7345, CVE-2014-0207, CVE-2014-3478, CVE-2014-3479,
  CVE-2014-3480, CVE-2014-3487, CVE-2014-3538

Package Information:
  https://launchpad.net/ubuntu/+source/file/1:5.14-2ubuntu3.1
  https://launchpad.net/ubuntu/+source/file/5.11-2ubuntu4.3
  https://launchpad.net/ubuntu/+source/file/5.09-2ubuntu0.4
  https://launchpad.net/ubuntu/+source/file/5.03-5ubuntu1.3