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Ubuntu: Security update for unity-firefox-extension

It was discovered that unity-firefox-extension incorrectly handled certain callbacks. A remote attacker could use this issue to cause unity-firefox-extension to crash, resulting in a denial of service, or possibly execute arbitrary code.

Updated packages are available from security.ubuntu.com.

==========================================================================
Ubuntu Security Notice USN-1639-1
November 22, 2012

unity-firefox-extension vulnerability
==========================================================================

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

- Ubuntu 12.10

Summary:

unity-firefox-extension could be made to crash or run programs as your
login if it opened a malicious website.

Software Description:
- unity-firefox-extension: Firefox extension: Unity Integration

Details:

It was discovered that unity-firefox-extension incorrectly handled certain
callbacks. A remote attacker could use this issue to cause
unity-firefox-extension to crash, resulting in a denial of service, or
possibly execute arbitrary code.

Update instructions:

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

Ubuntu 12.10:
 xul-ext-unity                   2.4.1-0ubuntu1.1

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

References:
 http://www.ubuntu.com/usn/usn-1639-1
 CVE-2012-0960

Package Information:

https://launchpad.net/ubuntu/+source/unity-firefox-extension/2.4.1-0ubuntu1.1
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