KLA19999 Multiple vulnerabilities in Microsoft Browser

Multiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code.

Below is a complete list of vulnerabilities:

1. Out of bounds write vulnerability in V8 can be exploited to cause denial of service.
2. Use after free vulnerability in Custom Elements can be exploited to cause denial of service or execute arbitrary code.

Original advisories

CVE-2022-3373

CVE-2022-3370

Related products

Microsoft-Edge

CVE list

CVE-2022-3373 critical

CVE-2022-3370 critical

KB list

Solution

Install necessary updates from the Settings and more menu, that are listed in your About Microsoft Edge page (Microsoft Edge About page usually can be accessed from the Help and feedback option)

Microsoft Edge update settings

Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

Affected Products

• Microsoft Edge (Chromium-based)