KLA12271
Multiple vulnerabilities in Microsoft Browser

Updated: 09/14/2021
Detect date
?
09/02/2021
Severity
?
High
Description

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

Below is a complete list of vulnerabilities:

  1. Use after free vulnerability in WebApp Installs can be exploited to cause denial of service or execute arbitrary code.
  2. Use after free vulnerability in Autofill can be exploited to cause denial of service or execute arbitrary code.
  3. Policy enforcement vulnerability in Blink can be exploited to bypass security restrictions.
  4. Security UI vulnerability in Autofill can be exploited to spoof user interface.
  5. Use after free vulnerability in Base internals can be exploited to cause denial of service or execute arbitrary code.
  6. Use after free vulnerability in Permissions can be exploited to cause denial of service or execute arbitrary code.
  7. Implementation vulnerability in DevTools can be exploited to cause denial of service.
  8. Use after free vulnerability in Sign-Incan be exploited to cause denial of service or execute arbitrary code.
  9. Use after free vulnerability in WebRTC can be exploited to cause denial of service or execute arbitrary code.
  10. Use after free vulnerability in Extenstions API can be exploited to cause denial of service or execute arbitrary code.
  11. Use after free vulnerability in Media can be exploited to cause denial of service or execute arbitrary code.
  12. Use after free vulnerability in Blink can be exploited to cause denial of service or execute arbitrary code.
  13. Use after free vulnerability in Web Share can be exploited to cause denial of service or execute arbitrary code.
  14. Data leak vulnerability in Navigation can be exploited to obtain sensitive information.
  15. Use after free vulnerability in Bookmarks can be exploited to cause denial of service or execute arbitrary code.
  16. Policy bypass vulnerability in Blink can be exploited to bypass security restrictions.
  17. Heap buffer overflow vulnerability in TabStrip can be exploited to cause denial of service.
  18. An information disclosure vulnerability in Microsoft Edge for Android can be exploited remotely to obtain sensitive information.
  19. An elevation of privilege vulnerability in Microsoft Edge (Chromium-based) can be exploited remotely to gain privileges.
  20. A spoofing vulnerability in Microsoft Edge for Android can be exploited remotely to spoof user interface.
  21. A spoofing vulnerability in Microsoft Edge for iOS can be exploited remotely to spoof user interface.
Affected products

Microsoft Edge for Android
Microsoft Edge (Chromium-based)

Solution

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

Original advisories

CVE-2021-30607
CVE-2021-26439
CVE-2021-30612
CVE-2021-30618
CVE-2021-30621
CVE-2021-30613
CVE-2021-30616
CVE-2021-30623
CVE-2021-30606
CVE-2021-30617
CVE-2021-30620
CVE-2021-30610
CVE-2021-30614
CVE-2021-30624
CVE-2021-30615
CVE-2021-30622
CVE-2021-30619
CVE-2021-30609
CVE-2021-30611
CVE-2021-30608
CVE-2021-26436
CVE-2021-36930
CVE-2021-38641
CVE-2021-38642

Impacts
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ACE 
[?]

OSI 
[?]

DoS 
[?]

SB 
[?]

SUI 
[?]
Related products
Microsoft Edge
CVE-IDS
?
CVE-2021-306220.0Unknown
CVE-2021-306240.0Unknown
CVE-2021-306200.0Unknown
CVE-2021-306210.0Unknown
CVE-2021-306130.0Unknown
CVE-2021-306070.0Unknown
CVE-2021-306180.0Unknown
CVE-2021-306090.0Unknown
CVE-2021-306110.0Unknown
CVE-2021-306100.0Unknown
CVE-2021-306160.0Unknown
CVE-2021-306060.0Unknown
CVE-2021-306190.0Unknown
CVE-2021-306080.0Unknown
CVE-2021-306120.0Unknown
CVE-2021-306150.0Unknown
CVE-2021-306230.0Unknown
CVE-2021-306170.0Unknown
CVE-2021-306140.0Unknown
CVE-2021-264390.0Unknown
CVE-2021-264360.0Unknown
CVE-2021-369300.0Unknown
CVE-2021-386410.0Unknown
CVE-2021-386420.0Unknown
Microsoft official advisories
Microsoft Security Update Guide
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