KLA15724 Multiple vulnerabilities in Microsoft Browser

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

Below is a complete list of vulnerabilities:

1. Use after free vulnerability in ANGLE can be exploited to cause denial of service or execute arbitrary code.
2. Use after free vulnerability in Sign-In Flow can be exploited to cause denial of service or execute arbitrary code.
3. Implementation vulnerability in Extensions API can be exploited to cause denial of service.
4. Heap buffer overflow vulnerability in Downloads can be exploited to cause denial of service.
5. Use after free vulnerability in SwiftShader can be exploited to cause denial of service or execute arbitrary code.
6. Use after free vulnerability in FedCM can be exploited to cause denial of service or execute arbitrary code.
7. Use after free vulnerability in Blink can be exploited to cause denial of service or execute arbitrary code.
8. Policy enforcement vulnerability in Cookies can be exploited to bypass security restrictions.

Original advisories

CVE-2022-2860

CVE-2022-2857

CVE-2022-2855

CVE-2022-2852

CVE-2022-2854

CVE-2022-2853

CVE-2022-2858

CVE-2022-2861

Exploitation

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

Related products

Microsoft-Edge

CVE list

CVE-2022-2855 critical

CVE-2022-2858 critical

CVE-2022-2861 high

CVE-2022-2853 critical

CVE-2022-2854 critical

CVE-2022-2852 critical

CVE-2022-2857 critical

CVE-2022-2860 high

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.

• 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.

Affected Products

• Microsoft Edge (Chromium-based)