USN-2707-1: Firefox vulnerability

Releases

• Ubuntu 15.04
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• firefox - Mozilla Open Source web browser

Details

Cody Crews discovered a way to violate the same-origin policy to inject
script in to a non-privileged part of the PDF viewer. If a user were
tricked in to opening a specially crafted website, an attacker could
exploit this to read sensitive information from local files.
(CVE-2015-4495)

Update instructions

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

Ubuntu 15.04

• firefox - 39.0.3+build2-0ubuntu0.15.04.1

Ubuntu 14.04

• firefox - 39.0.3+build2-0ubuntu0.14.04.1

Ubuntu 12.04

• firefox - 39.0.3+build2-0ubuntu0.12.04.1

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

References

• CVE-2015-4495