Ubuntu alert USN-3288-1 (libytnef)

From:
    	     
 
Marc Deslauriers <marc.deslauriers@canonical.com> 
To:
    	     
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
    	     
 
[USN-3288-1] libytnef vulnerabilities 
Date:
    	     
 
Mon, 15 May 2017 13:33:10 -0400
Message-ID:
    	     
 
<3513c866-f480-074f-214f-de58283cb518@canonical.com>
==========================================================================
Ubuntu Security Notice USN-3288-1
May 15, 2017

libytnef vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS

Summary:

libytnef could be made to crash or run programs as your login if it opened
a specially crafted file.

Software Description:
- libytnef: improved decoder for application/ms-tnef attachments

Details:

It was discovered that libytnef incorrectly handled malformed TNEF streams.
If a user were tricked into opening a specially crafted TNEF attachment, an
attacker could cause 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 14.04 LTS:
  libytnef0                       1.5-6ubuntu0.1

After a standard system update you need to restart applications using
libytnef, such as Evolution, to make all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-3288-1
  CVE-2017-6298, CVE-2017-6299, CVE-2017-6300, CVE-2017-6301,
  CVE-2017-6302, CVE-2017-6303, CVE-2017-6304, CVE-2017-6305,
  CVE-2017-6306, CVE-2017-6800, CVE-2017-6801, CVE-2017-6802

Package Information:
  https://launchpad.net/ubuntu/+source/libytnef/1.5-6ubuntu0.1


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