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Ubuntu 11.04 USN-1222-1 Moderate: Memory Vulnerabilities in Firefox

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Calendar Grey September 30, 2011
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Various security issues in Firefox on Ubuntu 11.04 may result in system crashes and potential code execution threats. It is recommended to perform an update.
Firefox could be made to crash or possibly run programs as your login if it opened a malicious website.

Summary

Firefox could be made to crash or possibly run programs as your login if it

opened a malicious website.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

Benjamin Smedberg, Bob Clary, Jesse Ruderman, Bob Clary, Andrew McCreight,

Andreas Gal, Gary Kwong, Igor Bukanov, Jason Orendorff, Jesse Ruderman, and

Marcia Knous discovered multiple memory vulnerabilities in the browser

rendering engine. An attacker could use these to possibly execute arbitrary

code with the privileges of the user invoking Firefox. (CVE-2011-2995,

CVE-2011-2997)

Boris Zbarsky discovered that a frame named "location" could shadow the

window.location object unless a script in a page grabbed a reference to the

true object before the frame was created. This is in violation of the Same

Origin Policy. A malicious website could possibly use this to access

another website or the local file system. (CVE-2011-2999)

Ian Graham discovered that when multiple Location headers...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory update code execution firefox memory issue ubuntu crash risk

Update Instructions

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

Ubuntu 11.04:
  firefox                         7.0.1+build1+nobinonly-0ubuntu0.11.04.1

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

References

https://ubuntu.com/security/notices/USN-1222-1

CVE-2011-2372, CVE-2011-2995, CVE-2011-2997, CVE-2011-2999,

CVE-2011-3000, CVE-2011-3001, CVE-2011-3002, CVE-2011-3003,

CVE-2011-3004, CVE-2011-3005, CVE-2011-3232

Severity
important
Lowest
Low
Medium
High
Critical

September 29, 2011

Topics%20covered

Topics Covered

security advisory update code execution firefox memory issue ubuntu crash risk

Package Information

https://launchpad.net/ubuntu/+source/firefox/7.0.1+build1+nobinonly-0ubuntu0.11.04.1

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