SB2021102808 - Multiple vulnerabilities in Google Chrome

Description

This security bulletin contains information about 8 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2021-37997)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Sign-In 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-2021-37998)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Garbage Collection 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.

3) Input validation error (CVE-ID: CVE-2021-37999)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper input validation in New Tab Page in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary code on the system.

4) Exposed dangerous method or function (CVE-ID: CVE-2021-38000)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insecure implementation in V8 engine in Google Chrome. A remote attacker can create a specially crafted website, trick the victim into visiting it and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited in the wild.

5) Type Confusion (CVE-ID: CVE-2021-38001)

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.

6) Use-after-free (CVE-ID: CVE-2021-38002)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Web Transport 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) Improperly implemented security check for standard (CVE-ID: CVE-2021-38003)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to incorrect implementation in the V8 engine in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.

Note, the vulnerability is being actively exploited in the wild.

8) Improper enforcement of behavioral workflow (CVE-ID: CVE-2021-38004)

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

The vulnerability exists due to insufficient policy enforcement in Autofill. A remote attacker can create a specially crafted web page, trick the victim into visiting it and bypass implemented security restrictions.

Remediation

Install update from vendor's website.

References

• https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html
• https://crbug.com/1259864
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37997
• https://crbug.com/1259587
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37998
• https://crbug.com/1251541
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37999
• https://crbug.com/1263462
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38000
• https://crbug.com/1260577
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38001
• https://crbug.com/1260940
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38002
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38003
• https://crbug.com/1227170