Ubuntu 12.04 LTS Security Advisory: File Denial Of Service Risk

ubuntu

February 26, 2014

File could be made to crash if it processed a specially crafted file.

Summary

File could be made to crash if it processed a specially crafted file.

Software Description:

- file: Tool to determine file types

Details:

It was discovered that file incorrectly handled Composite Document files.

An attacker could use this issue to cause file to crash, resulting in a

denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu

12.04 LTS. (CVE-2012-1571)

Bernd Melchers discovered that file incorrectly handled indirect offset

values. An attacker could use this issue to cause file to consume resources

or crash, resulting in a denial of service. (CVE-2014-1943)

Topics Covered

security advisory denial of service software update Ubuntu file crash

Update Instructions

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

Ubuntu 13.10:
  file                            5.11-2ubuntu4.1
  libmagic1                       5.11-2ubuntu4.1

Ubuntu 12.10:
  file                            5.11-2ubuntu0.1
  libmagic1                       5.11-2ubuntu0.1

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

Ubuntu 10.04 LTS:
  file                            5.03-5ubuntu1.1
  libmagic1                       5.03-5ubuntu1.1

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