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Ubuntu 15.04: USN-2743-1 Critical: Firefox Remote Code Execution Risk

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Calendar Grey September 22, 2015
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A security vulnerability has been found in Firefox on Ubuntu, risking crashes and remote code execution from malicious sites. It's best to update now
Firefox could be made to crash or run programs as your login if it opened a malicious website.

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:

Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David

Major, Andrew McCreight, Cameron McCormack, Bob Clary and Randell Jesup

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-2015-4500, CVE-2015-4501)

André Bargull discovered that when a web page creates a scripted proxy

for the window with a handler defined a certain way, a reference to the

inner window will be passed, rather than that of the outer window.

(CVE-2015-4502)

Felix Gröbert discovered an out-of-bounds read in the QCMS color

management library in some circumstances....

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory remote code execution firefox application crash ubuntu

Update Instructions

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

Ubuntu 15.04:
  firefox                         41.0+build3-0ubuntu0.15.04.1

Ubuntu 14.04 LTS:
  firefox                         41.0+build3-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         41.0+build3-0ubuntu0.12.04.1

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

References

https://ubuntu.com/security/notices/USN-2743-1

CVE-2015-4500, CVE-2015-4501, CVE-2015-4502, CVE-2015-4504,

CVE-2015-4506, CVE-2015-4507, CVE-2015-4508, CVE-2015-4509,

CVE-2015-4510, CVE-2015-4512, CVE-2015-4516, CVE-2015-4517,

CVE-2015-4519, CVE-2015-4520, CVE-2015-4521, CVE-2015-4522,

CVE-2015-7174, CVE-2015-7175, CVE-2015-7176, CVE-2015-7177,

CVE-2015-7180

Severity
critical
Lowest
Low
Medium
High
Critical

September 22, 2015

Topics%20covered

Topics Covered

security advisory remote code execution firefox application crash ubuntu

Package Information

https://launchpad.net/ubuntu/+source/firefox/41.0+build3-0ubuntu0.15.04.1
https://launchpad.net/ubuntu/+source/firefox/41.0+build3-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/41.0+build3-0ubuntu0.12.04.1

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