Firefox ESR < 38.6.1 Multiple Graphite 2 Library RCE (Mac OS X)
High Nessus Plugin ID 88751
SynopsisThe remote Mac OS X host contains a web browser that is affected by a remote code execution vulnerability.
DescriptionThe version of Mozilla Firefox ESR installed on the remote Mac OS X 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.