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Ubuntu: 1729-1: Firefox vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
Ubuntu Firefox could be made to crash or run programs as your login if it opened amalicious website.
==========================================================================
Ubuntu Security Notice USN-1729-1
February 20, 2013

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

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 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:

Olli Pettay, Christoph Diehl, Gary Kwong, Jesse Ruderman, Andrew McCreight,
Joe Drew, Wayne Mery, Alon Zakai, Christian Holler, Gary Kwong, Luke
Wagner, Terrence Cole, Timothy Nikkel, Bill McCloskey, and Nicolas Pierron
discovered multiple memory safety issues affecting Firefox. If the user
were tricked into opening a specially crafted page, an attacker could
possibly exploit these to cause a denial of service via application crash.
(CVE-2013-0783, CVE-2013-0784)

Atte Kettunen discovered that Firefox could perform an out-of-bounds read
while rendering GIF format images. An attacker could exploit this to crash
Firefox. (CVE-2013-0772)

Boris Zbarsky discovered that Firefox did not properly handle some wrapped
WebIDL objects. If the user were tricked into opening a specially crafted
page, an attacker could possibly exploit this to cause a denial of service
via application crash, or potentially execute code with the privileges of
the user invoking Firefox. (CVE-2013-0765)

Bobby Holley discovered vulnerabilities in Chrome Object Wrappers (COW) and
System Only Wrappers (SOW). If a user were tricked into opening a specially
crafted page, a remote attacker could exploit this to bypass security
protections to obtain sensitive information or potentially execute code
with the privileges of the user invoking Firefox. (CVE-2013-0773)

Frederik Braun that Firefox made the location of the active browser profile
available to JavaScript workers. (CVE-2013-0774)

A use-after-free vulnerability was discovered in Firefox. An attacker could
potentially exploit this to execute code with the privileges of the user
invoking Firefox. (CVE-2013-0775)

Michal Zalewski discovered that Firefox would not always show the correct
address when cancelling a proxy authentication prompt. A remote attacker
could exploit this to conduct URL spoofing and phishing attacks.
(CVE-2013-0776)

Abhishek Arya discovered several problems related to memory handling. If
the user were tricked into opening a specially crafted page, an attacker
could possibly exploit these to cause a denial of service via application
crash, or potentially execute code with the privileges of the user invoking
Firefox. (CVE-2013-0777, CVE-2013-0778, CVE-2013-0779, CVE-2013-0780,
CVE-2013-0781, CVE-2013-0782)

Update instructions:

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

Ubuntu 12.10:
  firefox                         19.0+build1-0ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  firefox                         19.0+build1-0ubuntu0.12.04.1

Ubuntu 11.10:
  firefox                         19.0+build1-0ubuntu0.11.10.1

Ubuntu 10.04 LTS:
  firefox                         19.0+build1-0ubuntu0.10.04.1

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

References:
  http://www.ubuntu.com/usn/usn-1729-1
  CVE-2013-0765, CVE-2013-0772, CVE-2013-0773, CVE-2013-0774,
  CVE-2013-0775, CVE-2013-0776, CVE-2013-0777, CVE-2013-0778,
  CVE-2013-0779, CVE-2013-0780, CVE-2013-0781, CVE-2013-0782,
  CVE-2013-0783, CVE-2013-0784, https://launchpad.net/bugs/1128883

Package Information:
  https://launchpad.net/ubuntu/+source/firefox/19.0+build1-0ubuntu0.12.10.1
  https://launchpad.net/ubuntu/+source/firefox/19.0+build1-0ubuntu0.12.04.1
  https://launchpad.net/ubuntu/+source/firefox/19.0+build1-0ubuntu0.11.10.1
  https://launchpad.net/ubuntu/+source/firefox/19.0+build1-0ubuntu0.10.04.1





 
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