ubuntu-security-announce Digest, Vol 117, Issue 7

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Today's Topics:

1. [USN-2243-1] Firefox vulnerabilities (Chris Coulson)
2. [USN-2244-1] Libav vulnerability (Marc Deslauriers)


----------------------------------------------------------------------

Message: 1
Date: Wed, 11 Jun 2014 13:28:53 +0100
From: Chris Coulson <chris.coulson@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-2243-1] Firefox vulnerabilities
Message-ID: <53984B85.8030304@canonical.com>
Content-Type: text/plain; charset="iso-8859-1"

==========================================================================
Ubuntu Security Notice USN-2243-1
June 11, 2014

firefox vulnerabilities
==========================================================================

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

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.04 LTS

Summary:

Firefox could be made to crash or run programs as your login if it
opened a malicious website.

Software Description:
- firefox: Mozilla Open Source web browser

Details:

Gary Kwong, Christoph Diehl, Christian Holler, Hannes Verschore, Jan de
Mooij, Ryan VanderMeulen, Jeff Walden, Kyle Huey, Jesse Ruderman, Gregor
Wagner, Benoit Jacob and Karl Tomlinson discovered multiple memory safety
issues in Firefox. If a user were tricked in to opening a specially
crafted website, an attacker could potentially exploit these to cause a
denial of service via application crash, or execute arbitrary code with
the privileges of the user invoking Firefox. (CVE-2014-1533,
CVE-2014-1534)

Abhishek Arya discovered multiple use-after-free and out-of-bounds read
issues in Firefox. An attacker could potentially exploit these to cause
a denial of service via application crash or execute arbitrary code with
the priviliges of the user invoking Firefox. (CVE-2014-1536,
CVE-2014-1537, CVE-2014-1538)

Tyson Smith and Jesse Schwartzentruber discovered a use-after-free in the
event listener manager. An attacker could potentially exploit this to
cause a denial of service via application crash or execute arbitrary code
with the priviliges of the user invoking Firefox. (CVE-2014-1540)

A use-after-free was discovered in the SMIL animation controller. An
attacker could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the priviliges of the
user invoking Firefox. (CVE-2014-1541)

Holger Fuhrmannek discovered a buffer overflow in Web Audio. An attacker
could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the priviliges of the
user invoking Firefox. (CVE-2014-1542)

Update instructions:

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

Ubuntu 14.04 LTS:
firefox 30.0+build1-0ubuntu0.14.04.3

Ubuntu 13.10:
firefox 30.0+build1-0ubuntu0.13.10.3

Ubuntu 12.04 LTS:
firefox 30.0+build1-0ubuntu0.12.04.3

After a standard system update you need to restart Firefox to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2243-1
CVE-2014-1533, CVE-2014-1534, CVE-2014-1536, CVE-2014-1537,
CVE-2014-1538, CVE-2014-1540, CVE-2014-1541, CVE-2014-1542,
https://launchpad.net/bugs/1326690

Package Information:
https://launchpad.net/ubuntu/+source/firefox/30.0+build1-0ubuntu0.14.04.3
https://launchpad.net/ubuntu/+source/firefox/30.0+build1-0ubuntu0.13.10.3
https://launchpad.net/ubuntu/+source/firefox/30.0+build1-0ubuntu0.12.04.3


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Message: 2
Date: Wed, 11 Jun 2014 09:35:12 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-2244-1] Libav vulnerability
Message-ID: <53985B10.5080601@canonical.com>
Content-Type: text/plain; charset="utf-8"

==========================================================================
Ubuntu Security Notice USN-2244-1
June 11, 2014

libav vulnerability
==========================================================================

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

- Ubuntu 13.10
- Ubuntu 12.04 LTS

Summary:

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

Software Description:
- libav: Multimedia player, server, encoder and transcoder

Details:

It was discovered that Libav incorrectly handled certain malformed media
files. If a user were tricked into opening a crafted media file, an
attacker could cause a denial of service via application crash, or possibly
execute arbitrary code with the privileges of the user invoking the
program.

Update instructions:

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

Ubuntu 13.10:
libavcodec53 6:0.8.12-0ubuntu0.13.10.1
libavformat53 6:0.8.12-0ubuntu0.13.10.1

Ubuntu 12.04 LTS:
libavcodec53 4:0.8.12-0ubuntu0.12.04.1
libavformat53 4:0.8.12-0ubuntu0.12.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
http://www.ubuntu.com/usn/usn-2244-1
CVE-2014-3984

Package Information:
https://launchpad.net/ubuntu/+source/libav/6:0.8.12-0ubuntu0.13.10.1
https://launchpad.net/ubuntu/+source/libav/4:0.8.12-0ubuntu0.12.04.1




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