Firefox ESR < 38.6.1 Multiple Graphite 2 Library RCE
High Nessus Plugin ID 88753
SynopsisThe remote Windows host contains a web browser that is affected by multiple remote code execution vulnerabilities.
DescriptionThe version of Mozilla Firefox ESR installed on the remote Windows host is prior to 38.6.1. It is, therefore, affected by multiple remote code execution vulnerabilities in the Graphite 2 library :
- An overflow condition exists in the Context Item functionality due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via a crafted Graphite smart font, to cause a heap-based buffer overflow, resulting in a denial of service or the execution of arbitrary code.
- An out-of-bounds write error exists in the setAttr() function that is triggered when handling maliciously crafted fonts. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2016-1969)
SolutionUpgrade to Mozilla Firefox ESR version 38.6.1 or later.