1. Ubuntu Security Notices
  2. USN-2768-1

USN-2768-1: Firefox vulnerability

Publication date

16 October 2015

Overview

Firefox could be made to expose sensitive information across origins

Releases

Packages

  • firefox - Mozilla Open Source web browser

Details

Abdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did
not correctly implement the Cross Origin Resource Sharing (CORS)
specification. If a user were tricked in to opening a specially crafted
website, an attacker could potentially exploit this to obtain sensitive
information from other origins. (CVE-2015-7184)

Abdulrahman Alqabandi and Ben Kelly discovered that the fetch() API did
not correctly implement the Cross Origin Resource Sharing (CORS)
specification. If a user were tricked in to opening a specially crafted
website, an attacker could potentially exploit this to obtain sensitive
information from other origins. (CVE-2015-7184)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
15.04 vivid firefox –  41.0.2+build2-0ubuntu0.15.04.1
14.04 trusty firefox –  41.0.2+build2-0ubuntu0.14.04.1
12.04 precise firefox –  41.0.2+build2-0ubuntu0.12.04.1

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References

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