Rewterz Threat Advisory – Mozilla Firefox Multiple Vulnerabilities

Severity

High

Analysis Summary

The following CVEs have been allocated to multiple vulnerabilities found in Mozilla Firefox.

CVE-2019-9805
CVE-2019-9803
CVE-2019-9790
CVE-2019-9797
CVE-2019-9795
CVE-2019-9807
CVE-2019-9796
CVE-2019-9792
CVE-2019-9789
CVE-2019-9791
CVE-2019-9788

• Some errors related to memory safety can be exploited to corrupt memory.
  
• A use-after-free error related to DOM elements can be exploited to corrupt memory.
  
• A type confusion error related to the IonMonkey just-in-time (JIT) compiler can be exploited to corrupt memory.
  
• An error related to the IonMonkey JIT compiler when handling JS_OPTIMIZED_OUT can be exploited to corrupt memory.
  
• A use-after-free error related to the SMIL animation controller when registering with the refresh driver can be exploited to corrupt memory.
  
• An error related to the “createImageBitmap()” function can be exploited to disclose images cross-origin.
  
• An error when handling the Upgrade-Insecure-Requests (UIR) specification can be exploited to bypass Content Security Policy protections.
  
• An error related to the Prio library can be exploited to corrupt memory.
  
• An error when handling text over an FTP connection can be exploited to spoof a modal alert message.

Impact

• System access
• Exposure of sensitive information
• Spoofing 
• Security Bypass
• Code execution

Affected Products

Mozilla Firefox 65.x

Remediation

Upgrade to Mozilla Firefox version 66 as soon as possible.