KLA12107 Multiple vulnerabilities in Microsoft Browser

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

Below is a complete list of vulnerabilities:

1. An uninitialized use vulnerability in PDFium can be exploited to obtain sensitive information.
2. An implementation vulnerability in performance APIs can be exploited to cause denial of service.
3. A policy enforcement vulnerability in payments can be exploited to bypass security restrictions.
4. A heap buffer overflow vulnerability in TabStrip can be exploited to cause denial of service.
5. An implementation vulnerability in Referrer can be exploited to cause denial of service.
6. An implementation vulnerability in Site isolation can be exploited to cause denial of service.
7. An out of bounds memory access vulnerability in V8 can be exploited to bypass security restrictions.
8. A data validation vulnerability in Reader Mode can be exploited to bypass security restrictions.
9. An implementation vulnerability in Compositing can be exploited to cause denial of service.
10. An object lifecycle vulnerability in audio component can be exploited to bypass security restrictions.
11. A security UI vulnerability in TabStrip and Navigation canbe exploited to spoof user interface.
12. A data validation vulnerability in Chrome for iOS can be exploited to bypass security restrictions.
13. A heap buffer overflow vulnerability in OpenJPEG can be exploited to cause denial of service.
14. A heap buffer overflow vulnerability in WebAudio can be exploited to cause denial of service.
15. A use after free vulnerability in Blink can be exploited to cause denial of service or execute arbitrary code.
16. An information leakage vulnerability in Network Internals can be exploited to obtain sensitive information.
17. A policy enforcement vulnerability in navigations can be exploited to bypass security restrictions.
18. A use after free vulnerability in bookmarks can be exploited to cause denial of service or execute arbitrary code.
19. A policy enforcement vulnerability in autofill component can be exploited to bypass security restrictions.
20. An implementation vulnerability in full screen mode can be exploited to cause denial of service.
21. A use after free vulnerability in tab search component can be exploited to cause denial of service or execute arbitrary code.
22. A security UI vulnerability in Loader canbe exploited to spoof user interface.
23. A policy enforcement vulnerability in File System API can be exploited to bypass security restrictions.
24. A use after free vulnerability in Network Internals can be exploited to cause denial of service or execute arbitrary code.
25. An information leakage vulnerability in autofill component can be exploited to obtain sensitive information.
26. A policy enforcement vulnerability in QR can be exploited to bypass security restrictions.
27. A use after free vulnerability in WebRTC can be exploited to cause denial of service or execute arbitrary code.
28. A policy enforcement vulnerability in extensions can be exploited to bypass security restrictions.
29. A data validation vulnerability in URL formatting can be exploited to bypass security restrictions.
30. A policy enforcement vulnerability in appcache component can be exploited to bypass security restrictions.

Original advisories

CVE-2021-21190

CVE-2021-21184

CVE-2021-21189

CVE-2021-21159

CVE-2021-21174

CVE-2021-21175

CVE-2021-21169

CVE-2021-21163

CVE-2021-21178

CVE-2021-21166

CVE-2021-21171

CVE-2021-21164

CVE-2020-27844

CVE-2021-21160

CVE-2021-21188

CVE-2021-21173

CVE-2021-21182

CVE-2021-21165

CVE-2021-21183

CVE-2021-21161

CVE-2021-21167

CVE-2021-21177

CVE-2021-21176

CVE-2021-21180

CVE-2021-21170

CVE-2021-21172

CVE-2021-21179

CVE-2021-21181

CVE-2021-21186

CVE-2021-21162

CVE-2021-21185

CVE-2021-21187

CVE-2021-21168

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Edge

CVE list

CVE-2020-27844 critical

CVE-2021-21159 critical

CVE-2021-21160 critical

CVE-2021-21161 critical

CVE-2021-21162 critical

CVE-2021-21163 high

CVE-2021-21164 high

CVE-2021-21165 critical

CVE-2021-21166 critical

CVE-2021-21167 critical

CVE-2021-21168 high

CVE-2021-21169 critical

CVE-2021-21170 high

CVE-2021-21171 high

CVE-2021-21172 critical

CVE-2021-21173 high

CVE-2021-21174 critical

CVE-2021-21175 high

CVE-2021-21176 high

CVE-2021-21177 high

CVE-2021-21178 high

CVE-2021-21179 critical

CVE-2021-21180 critical

CVE-2021-21181 high

CVE-2021-21182 high

CVE-2021-21183 warning

CVE-2021-21184 warning

CVE-2021-21185 warning

CVE-2021-21186 warning

CVE-2021-21187 warning

CVE-2021-21188 critical

CVE-2021-21189 warning

CVE-2021-21190 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.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• 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.

• 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)