KLA20188 Multiple vulnerabilities in Microsoft Browser

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

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in GuestView can be exploited to cause denial of service or execute arbitrary code.
2. Use after free vulnerability in WebRTC can be exploited to cause denial of service or execute arbitrary code.
3. Type confusion vulnerability in ServiceWorker API can be exploited to cause denial of service.
4. Use after free vulnerability in WebTransport can be exploited to cause denial of service or execute arbitrary code.

Original advisories

CVE-2023-0474

CVE-2023-0472

CVE-2023-0473

CVE-2023-0471

Related products

Microsoft-Edge

CVE list

CVE-2023-0474 critical

CVE-2023-0473 critical

CVE-2023-0472 critical

CVE-2023-0471 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.

• SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

• Microsoft Edge (Chromium-based)Microsoft Edge (Chromium-based) Extended Stable