SB2016080501 - Security bypass in Mozilla Firefox
Published: August 6, 2016 Updated: February 16, 2017
Security Bulletin ID
SB2016080501
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security bypass (CVE-ID: CVE-2015-4495)
The vulnerabiity allows a remote attacker to bypass security restrictions on the target system.The weakness exists due to improper input validation. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, bypass same-origin policy and inject arbitrary JavaScript into the built-in PDF Viewer to gain access to arbitrary files on the system.
Successful exploitation of this vulnerability may result in access to local files and privilege escalation, leading to system compromise.
Note: the vulnerability was being actively exploited.
Remediation
Install update from vendor's website.