Multiple vulnerabilities in Microsoft Browser

Description

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

Below is a complete list of vulnerabilities:

1. A data validation vulnerability in V8 can be exploited to bypass security restrictions.
2. A policy enforcement vulnerability in extensions component can be exploited to bypass security restrictions.
3. A use after free vulnerability in Dev Tools can be exploited to cause denial of service or execute arbitrary code.
4. A type confusion vulnerability in V8 can be exploited to cause denial of service.
5. A heap buffer overflow vulnerability in ANGLE can be exploited to cause denial of service.
6. A security UI vulnerability in downloads component can be exploited to spoof user interface.

Original advisories

• CVE-2021-21231

• CVE-2021-21230
• CVE-2021-21232
• CVE-2021-21229
• CVE-2021-21227
• CVE-2021-21233
• CVE-2021-21228

Related products

• Microsoft-Edge

CVE list

• CVE-2021-21227
  critical
• CVE-2021-21228
  warning
• CVE-2021-21232
  critical
• CVE-2021-21230
  critical
• CVE-2021-21233
  critical
• CVE-2021-21231
  critical
• CVE-2021-21229
  high

KB list

Read more

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