SB2023121501 - Multiple vulnerabilities in Microsoft Edge

Description

This security bulletin contains information about 7 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2023-6706)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the FedCM component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

2) Use-after-free (CVE-ID: CVE-2023-6707)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within CSS in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

3) Security features bypass (CVE-ID: CVE-2023-36878)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the way Microsoft Edge handles access to blocked websites. A remote attacker can trick the victim to visit a specially crafted website and use certain tags to bypass Edge protection and load malicious images hosted on the blocked websites.

4) Type Confusion (CVE-ID: CVE-2023-6702)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error within the V8 component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

5) Use-after-free (CVE-ID: CVE-2023-6703)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Blink component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

6) Use-after-free (CVE-ID: CVE-2023-6704)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the libavif component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

7) Use-after-free (CVE-ID: CVE-2023-6705)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the WebRTC component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6706
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6707
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36878
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6702
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6703
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6704
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2023-6705