5 December 2014

Alert Priority High

The Mozilla Foundation has released updates to address a range of vulnerabilities in the widely used Firefox and Thunderbird products.

Announcement of the vulnerabilities reinforces the importance of users applying updates to protect their systems from malicious intrusion.

The vulnerabilities could be exploited to allow an attacker to obtain sensitive information or effectively disable a computer or network.

The Mozilla Foundation rated three of the vulnerabilities as ‘critical’, meaning they could be used to run malicious code and install software without requiring any user interaction beyond normal browsing.

It ranked another three vulnerabilities as ‘high’, meaning they could be used to gather sensitive data from sites in other windows or inject data or code into those sites, without requiring any user interaction other than normal browsing.

The remaining three were ‘moderate’, meaning they only worked in uncommon configurations or required the user to perform unusual activities.

More information

US CERT has more information about the vulnerabilities here.

Stay Smart Online has information on automating updates to your computer.

The information provided here is of a general nature. Everyone's circumstances are different. If you require specific advice you should contact your local technical support provider.


Thank you to those subscribers who have provided feedback to our Alerts and Newsletters. We are very interested in your feedback and where possible take on board your suggestions or requests.


This information has been prepared by Enex TestLab for the Department of Communications ('the Department'). It was accurate and up to date at the time of publishing.

This information is general information only and is intended for use by private individuals and small to medium sized businesses. If you are concerned about a specific cyber security issue you should seek professional advice.

The Commonwealth, Enex TestLab, and all other persons associated with this advisory accept no liability for any damage, loss or expense incurred as a result of the provision of this information, whether by way of negligence or otherwise.

Nothing in this information (including the listing of a person or organisation or links to other web sites) should be taken as an endorsement of a particular product or service.

Please note that third party views or recommendations included in this information do not reflect the views of the Commonwealth, or indicate its commitment to a particular course of action. The Commonwealth also cannot verify the accuracy of any third party material included in this information.


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