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USN-2893-1: Firefox vulnerability

11 February 2016

A same-origin-policy bypass was discovered in Firefox.

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

Jason Pang discovered that service workers intercept responses to plugin
network requests made through the browser. An attacker could potentially
exploit this to bypass same origin restrictions using the Flash plugin.
(CVE-2016-1949)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 15.10
Ubuntu 14.04
Ubuntu 12.04

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

References

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Further reading