KLA12064
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, bypass security restrictions.

Below is a complete list of vulnerabilities:

1. Heap buffer overflow vulnerability in Tab Groups can be exploited to cause denial of service.
2. Use after free vulnerability in Navigation can be exploited to cause denial of service and execute arbitrary code.
3. A security feature bypass vulnerability in Microsoft Edge (Chromium-based) can be exploited remotely to bypass security restrictions.
4. Heap buffer overflow vulnerability in Extensions can be exploited to cause denial of service.
5. Implementation vulnerability in Skia can be exploited to potentially cause denial of service.
6. Use after free vulnerability in Fonts can be exploited to cause denial of service and execute arbitrary code.
7. Use after free vulnerability in Payments can be exploited to cause denial of service and execute arbitrary code.

Microsoft Edge (Chromium-based)

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

CVE-2021-21144
CVE-2021-21146
CVE-2021-24113
CVE-2021-21143
CVE-2021-21147
CVE-2021-21145
CVE-2021-21142