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Ubuntu 13.04 USN-1890-2 Critical: Firefox Network Proxy Fix

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Calendar Grey July 3, 2013
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Ubuntu Security Notice USN-1890-2 addresses a Firefox issue concerning network proxy configuration and application stability.
USN-1890-1 introduced a regression in Firefox.

Summary

USN-1890-1 introduced a regression in Firefox.

Software Description:

- firefox: Mozilla Open Source web browser

Details:

USN-1890-1 fixed vulnerabilities in Firefox. This update introduced a

regression which sometimes resulted in Firefox using the wrong network

proxy settings. This update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Multiple memory safety issues were discovered in 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, or

potentially execute arbitrary code with the privileges of the user invoking

Firefox. (CVE-2013-1682, CVE-2013-1683)

Abhishek Arya discovered multiple use-after-free bugs. If the user were

tricked into opening a specially crafted page, an attacker could possibly

exploit these to execute arbitrary code with the privileges of the user

invoking Firefox. (CVE-2013-16...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory software update firefox application crash ubuntu regression fix network proxy

Update Instructions

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

Ubuntu 13.04:
  firefox                         22.0+build2-0ubuntu0.13.04.2

Ubuntu 12.10:
  firefox                         22.0+build2-0ubuntu0.12.10.2

Ubuntu 12.04 LTS:
  firefox                         22.0+build2-0ubuntu0.12.04.2

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

References

https://ubuntu.com/security/notices/USN-1890-2

https://ubuntu.com/security/notices/USN-1890-1

https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1194841

Severity
critical
Lowest
Low
Medium
High
Critical

July 03, 2013

Topics%20covered

Topics Covered

security advisory software update firefox application crash ubuntu regression fix network proxy

Package Information

https://launchpad.net/ubuntu/+source/firefox/22.0+build2-0ubuntu0.13.04.2
https://launchpad.net/ubuntu/+source/firefox/22.0+build2-0ubuntu0.12.10.2
https://launchpad.net/ubuntu/+source/firefox/22.0+build2-0ubuntu0.12.04.2

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