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Ubuntu 14.10 USN-2538-1 Critical: Firefox Code Execution Risk

ubuntu
Calendar Grey March 22, 2015
Dist Ubuntu Esm H88
An urgent notice regarding security vulnerabilities in Firefox for Ubuntu 12.04, 14.04, and 14.10. Please update immediately!
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:

A flaw was discovered in the implementation of typed array bounds checking

in the Javascript just-in-time compilation. If a user were tricked in to

opening a specially crafted website, an attacked could exploit this to

execute arbitrary code with the privileges of the user invoking Firefox.

(CVE-2015-0817)

Mariusz Mlynski discovered a flaw in the processing of SVG format content

navigation. If a user were tricked in to opening a specially crafted

website, an attacker could exploit this to run arbitrary script in a

privileged context. (CVE-2015-0818)

Topics%20covered

Topics Covered

security advisory code execution Ubuntu firefox web browser

Update Instructions

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

Ubuntu 14.10:
  firefox                         36.0.4+build1-0ubuntu0.14.10.1

Ubuntu 14.04 LTS:
  firefox                         36.0.4+build1-0ubuntu0.14.04.1

Ubuntu 12.04 LTS:
  firefox                         36.0.4+build1-0ubuntu0.12.04.1

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

References

https://ubuntu.com/security/notices/USN-2538-1

CVE-2015-0817, CVE-2015-0818

Severity
critical
Lowest
Low
Medium
High
Critical

March 22, 2015

Topics%20covered

Topics Covered

security advisory code execution Ubuntu firefox web browser

Package Information

https://launchpad.net/ubuntu/+source/firefox/36.0.4+build1-0ubuntu0.14.10.1
https://launchpad.net/ubuntu/+source/firefox/36.0.4+build1-0ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/firefox/36.0.4+build1-0ubuntu0.12.04.1

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