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Ubuntu Security Notice USN-2329-1
September 02, 2014

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

- Ubuntu 14.04 LTS
- 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:

Jan de Mooij, Christian Holler, Karl Tomlinson, Randell Jesup, Gary Kwong,
Jesse Ruderman, JW Wang and David Weir 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-2014-1553,
CVE-2014-1554, CVE-2014-1562)

Abhishek Arya discovered a use-after-free during DOM interactions with
SVG. If a user were tricked in to opening a specially crafted page, an
attacker could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2014-1563)

Michal Zalewski discovered that memory is not initialized properly during
GIF rendering in some circumstances. If a user were tricked in to opening
a specially crafted page, an attacker could potentially exploit this to
steal confidential information. (CVE-2014-1564)

Holger Fuhrmannek discovered an out-of-bounds read in Web Audio. If a
user were tricked in to opening a specially crafted website, an attacker
could potentially exploit this to cause a denial of service via
application crash or steal confidential information. (CVE-2014-1565)

A use-after-free was discovered during text layout in some circumstances.
If a user were tricked in to opening a specially crafted website, an
attacker could potentially exploit this to cause a denial of service via
application crash or execute arbitrary code with the privileges of the
user invoking Firefox. (CVE-2014-1567)

Update instructions:

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

Ubuntu 14.04 LTS:
  firefox                         32.0+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         32.0+build1-0ubuntu0.12.04.1

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

References:
  http://www.ubuntu.com/usn/usn-2329-1
  CVE-2014-1553, CVE-2014-1554, CVE-2014-1562, CVE-2014-1563,
  CVE-2014-1564, CVE-2014-1565, CVE-2014-1567

Package Information:
  https://launchpad.net/ubuntu/+source/firefox/32.0+build1-0ubuntu0.14.04.1
  https://launchpad.net/ubuntu/+source/firefox/32.0+build1-0ubuntu0.12.04.1