Firefox ESR < 38.2.1 Multiple Vulnerabilities
High Nessus Plugin ID 85688
SynopsisThe remote Windows host contains a web browser that is affected by multiple vulnerabilities.
DescriptionThe version of Mozilla Firefox ESR installed on the remote Windows host is prior to 38.2.1. It is, therefore, affected by the following vulnerabilities :
- A use-after-free error exists when handling restyling operations during the resizing of canvas elements due to the canvas references being recreated, thus destroying the original references. A remote, unauthenticated attacker can exploit this to deference already freed memory, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2015-4497)
- A security feature bypass vulnerability exists due to a flaw that allows the manipulation of the 'data:' URL on a loaded web page without install permission prompts being displayed to the user. A remote, unauthenticated attacker can exploit this to install add-ons from a malicious source. (CVE-2015-4498)
SolutionUpgrade to Firefox ESR 38.2.1 or later.