SB2021091401 - Multiple vulnerabilities in Google Chrome

Description

This security bulletin contains information about 10 secuirty vulnerabilities.

1) Use-after-free (CVE-ID: CVE-2021-30625)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Selection API 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) Buffer overflow (CVE-ID: CVE-2021-30626)

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

The vulnerability exists due to a boundary error in ANGLE in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.

3) Type Confusion (CVE-ID: CVE-2021-30627)

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 Blink layout 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.

4) Stack-based buffer overflow (CVE-ID: CVE-2021-30628)

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

The vulnerability exists due to a boundary error in ANGLE in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.

5) Use-after-free (CVE-ID: CVE-2021-30629)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Permissions 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) Improperly implemented security check for standard (CVE-ID: CVE-2021-30630)

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

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

7) Type Confusion (CVE-ID: CVE-2021-30631)

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 Blink layout 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.

8) Out-of-bounds write (CVE-ID: CVE-2021-30632)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in V8. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.

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

9) Use-after-free (CVE-ID: CVE-2021-30633)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Indexed DB API 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.

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

10) Use-after-free (CVE-ID: CVE-2021-4319)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Blink. 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://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
• https://crbug.com/1237533
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30625
• https://crbug.com/1241036
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30626
• https://crbug.com/1245786
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30627
• https://crbug.com/1241123
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30628
• https://crbug.com/1243646
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30629
• https://crbug.com/1244568
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30630
• https://crbug.com/1246932
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30631
• https://crbug.com/1247763
• https://crbug.com/1247766
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30633
• https://crbug.com/1214199