USN-2557-1: Firefox vulnerability

7 April 2015

Firefox could be made to bypass SSL certificate verification.

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Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

Muneaki Nishimura discovered a flaw in Mozilla's HTTP Alternative Services
implementation which meant SSL certificate verification could be bypassed
in some circumstances. A remote attacker could potentially exploit this to
conduct a machine-in-the-middle attack. (CVE-2015-0799)

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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 14.10
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