Ubuntu 14.04: 2278-1 Moderate: File Denial Of Service Issues

ubuntu

July 15, 2014

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

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 Kaluža 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)

Topics Covered

security advisory denial of service security issue ubuntu file tool

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.