KLA12192
Multiple vulnerabilities in Microsoft Browser

Multiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to bypass security restrictions, spoof user interface, execute arbitrary code, cause denial of service, obtain sensitive information, gain privileges.

Below is a complete list of vulnerabilities:

1. A policy enforcement vulnerability in Content Security Policy can be exploited to bypass security restrictions.
2. A policy enforcement vulnerability in iFrameSandbox can be exploited to bypass security restrictions.
3. A security UI vulnerability in payments component can be exploited to spoof user interface.
4. A use after free vulnerability in WebRTC can be exploited to cause denial of service or execute arbitrary code.
5. A security feature bypass vulnerability in Microsoft Edge (Chromium-based) can be exploited remotely to bypass security restrictions.
6. A double free vulnerability in ICU can be exploited to cause denial of service or execute arbitrary code.
7. A use after free vulnerability in TabStrip can be exploited to cause denial of service or execute arbitrary code.
8. A policy enforcement vulnerability in cookies component can be exploited to bypass security restrictions.
9. An out of bounds read vulnerability in V8 can be exploited to obtain sensitive information or cause denial of service.
10. A heap buffer overflow vulnerability in Autofill can be exploited to cause denial of service or execute arbitrary code.
11. A use after free vulnerability in WebUI can be exploited to cause denial of service or execute arbitrary code.
12. A use after free vulnerability in WebAudio can be exploited to cause denial of service or execute arbitrary code.
13. A policy enforcement vulnerability in PopupBlocker can be exploited to bypass security restrictions.
14. A use after free vulnerability in TabGroups can be exploited to cause denial of service or execute arbitrary code.
15. An out of bounds memory access vulnerability in WebAudio can be exploited to cause denial of service or execute arbitrary code.
16. An out of bounds write vulnerability in TabStrip can be exploited to cause denial of service or execute arbitrary code.
17. A use after free vulnerability in WebAuthentication can be exploited to cause denial of service or execute arbitrary code.
18. A use after free vulnerability in Bookmarks can be exploited to cause denial of service or execute arbitrary code.
19. An elevation of privilege vulnerability in Microsoft Edge (Chromium-based) can be exploited remotely to gain privileges.

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-2021-30538
CVE-2021-30534
CVE-2021-30540
CVE-2021-30523
CVE-2021-31982
CVE-2021-30535
CVE-2021-30524
CVE-2021-30537
CVE-2021-30536
CVE-2021-30521
CVE-2021-30527
CVE-2021-30539
CVE-2021-30532
CVE-2021-30522
CVE-2021-30533
CVE-2021-30525
CVE-2021-30530
CVE-2021-30526
CVE-2021-30528
CVE-2021-30531
CVE-2021-30529
CVE-2021-31937