Debian Security Advisory

DLA-730-1 firefox-esr -- LTS security update

Date Reported:
01 Dec 2016
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2016-5290, CVE-2016-5291, CVE-2016-5296, CVE-2016-5297, CVE-2016-9064, CVE-2016-9066.
More information:

Multiple security issues have been found in the Mozilla Firefox web browser: Multiple memory safety errors, buffer overflows and other implementation errors may lead to the execution of arbitrary code or bypass of the same-origin policy.

A man-in-the-middle attack in the addon update mechanism has been fixed.

A use-after-free vulnerability in the SVG Animation was discovered, allowing a remote attacker to cause a denial of service (application crash) or execute arbitrary code, if a user is tricked into opening a specially crafted website.

For Debian 7 Wheezy, these problems have been fixed in version 45.5.1esr-1~deb7u1.

We recommend that you upgrade your firefox-esr packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: