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Ubuntu Security Notice USN-2278-1

Ubuntu Security Notice USN-2278-1
Posted Jul 15, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2278-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2013-7345, CVE-2014-0207, CVE-2014-3478, CVE-2014-3479, CVE-2014-3480, CVE-2014-3487, CVE-2014-3538
SHA-256 | fd91d89c0e0f45a391afcd59751756bc137092d30677dcd44fab7511dbf1a997

Ubuntu Security Notice USN-2278-1

Change Mirror Download
============================================================================
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
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