KLA71338 Multiple vulnerabilities in Microsoft Browser

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

Below is a complete list of vulnerabilities:

1. Insufficient data validation vulnerability in Dawn can be exploited to cause denial of service or bypass security restrictions.
2. Out of bounds read vulnerability in WebTransport can be exploited to cause denial of service.
3. Uninitialized use vulnerability in Dawn can be exploited to execute arbitrary code, obtain sensitive information or bypass security restrictions.

Original advisories

CVE-2024-7256

CVE-2024-7255

CVE-2024-6990

Related products

Microsoft-Edge

CVE list

CVE-2024-7255 unknown

CVE-2024-6990 unknown

CVE-2024-7256 unknown

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.

Affected Products

• Microsoft Edge (Chromium-based)