SB2017120405 - Red Hat update for Mozilla Firefox
Published: December 4, 2017 Updated: December 6, 2017
Security Bulletin ID
SB2017120405
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2017-7843)
The vulnerability allows a remote attacker to bypass security restrictions on the target system.The weakness exists in web worker while in Private Browsing mode due to improper input validation. A remote attacker can trick the victim into visiting a specially crafted website, bypass private-browsing protections and uniquely fingerprint visitors.to write persistent data to IndexedDB, which was not cleared when exiting and would persist across multiple sessions.
Remediation
Install update from vendor's website.