Multiple vulnerabilities in Google Chrome



Published: 2021-09-30 | Updated: 2021-10-01
Risk Critical
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-37974
CVE-2021-37975
CVE-2021-37976
CWE-ID CWE-416
CWE-200
Exploitation vector Network
Public exploit Vulnerability #2 is being exploited in the wild.
Vulnerability #3 is being exploited in the wild.
Vulnerable software
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Google Chrome
Client/Desktop applications / Web browsers

Vendor Google, Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU56971

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-37974

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Safe Browsing 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.

Mitigation

Update to version 94.0.4606.71.

Vulnerable software versions

Google Chrome: 7.0.517.41, 7.0.517.44, 70.0.3538.67, 70.0.3538.77, 70.0.3538.102, 70.0.3538.110, 71.0.3578.80, 71.0.3578.98, 72.0.3626.81, 72.0.3626.96, 72.0.3626.109, 72.0.3626.119, 72.0.3626.121, 73.0.3683.75, 73.0.3683.86, 73.0.3683.103, 74.0.3729.108, 74.0.3729.131, 74.0.3729.157, 74.0.3729.169, 75.0.3770.80, 75.0.3770.90, 75.0.3770.100, 75.0.3770.142, 76.0.3809.87, 76.0.3809.100, 76.0.3809.132, 77.0.3865.75, 77.0.3865.90, 77.0.3865.120, 78.0.3904.70, 78.0.3904.87, 78.0.3904.97, 78.0.3904.108, 79.0.3945.79, 79.0.3945.88, 79.0.3945.117, 79.0.3945.130, 80.0.3987.87, 80.0.3987.100, 80.0.3987.106, 80.0.3987.116, 80.0.3987.122, 80.0.3987.132, 80.0.3987.149, 80.0.3987.162, 80.0.3987.163, 81.0.4044.92, 81.0.4044.113, 81.0.4044.122, 81.0.4044.129, 81.0.4044.138, 83.0.4103.61, 83.0.4103.97, 83.0.4103.106, 83.0.4103.116, 84.0.4147.89, 84.0.4147.105, 84.0.4147.125, 84.0.4147.135, 85.0.4183.83, 85.0.4183.102, 85.0.4183.121, 86.0.4240.75, 86.0.4240.111, 86.0.4240.183, 86.0.4240.193, 86.0.4240.198, 87.0.4280.66, 87.0.4280.88, 87.0.4280.141, 88.0.4324.96, 88.0.4324.104, 88.0.4324.146, 88.0.4324.150, 88.0.4324.182, 88.0.4324.190, 89.0.4389.72, 89.0.4389.82, 89.0.4389.90, 89.0.4389.114, 89.0.4389.128, 90.0.4430.72, 90.0.4430.85, 90.0.4430.93, 90.0.4430.212, 91.0.4472.77, 91.0.4472.101, 91.0.4472.106, 91.0.4472.114, 91.0.4472.124, 91.0.4472.164, 92.0.4515.107, 92.0.4515.131, 92.0.4515.159, 93.0.4577.63, 93.0.4577.82, 94.0.4606.54, 94.0.4606.61

CPE2.3 External links

http://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html
http://crbug.com/1245578
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37974

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Use-after-free

EUVDB-ID: #VU56972

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-37975

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the V8 browser engine 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.

Mitigation

Update to version 94.0.4606.71.

Vulnerable software versions

Google Chrome: 7.0.517.41, 7.0.517.44, 70.0.3538.67, 70.0.3538.77, 70.0.3538.102, 70.0.3538.110, 71.0.3578.80, 71.0.3578.98, 72.0.3626.81, 72.0.3626.96, 72.0.3626.109, 72.0.3626.119, 72.0.3626.121, 73.0.3683.75, 73.0.3683.86, 73.0.3683.103, 74.0.3729.108, 74.0.3729.131, 74.0.3729.157, 74.0.3729.169, 75.0.3770.80, 75.0.3770.90, 75.0.3770.100, 75.0.3770.142, 76.0.3809.87, 76.0.3809.100, 76.0.3809.132, 77.0.3865.75, 77.0.3865.90, 77.0.3865.120, 78.0.3904.70, 78.0.3904.87, 78.0.3904.97, 78.0.3904.108, 79.0.3945.79, 79.0.3945.88, 79.0.3945.117, 79.0.3945.130, 80.0.3987.87, 80.0.3987.100, 80.0.3987.106, 80.0.3987.116, 80.0.3987.122, 80.0.3987.132, 80.0.3987.149, 80.0.3987.162, 80.0.3987.163, 81.0.4044.92, 81.0.4044.113, 81.0.4044.122, 81.0.4044.129, 81.0.4044.138, 83.0.4103.61, 83.0.4103.97, 83.0.4103.106, 83.0.4103.116, 84.0.4147.89, 84.0.4147.105, 84.0.4147.125, 84.0.4147.135, 85.0.4183.83, 85.0.4183.102, 85.0.4183.121, 86.0.4240.75, 86.0.4240.111, 86.0.4240.183, 86.0.4240.193, 86.0.4240.198, 87.0.4280.66, 87.0.4280.88, 87.0.4280.141, 88.0.4324.96, 88.0.4324.104, 88.0.4324.146, 88.0.4324.150, 88.0.4324.182, 88.0.4324.190, 89.0.4389.72, 89.0.4389.82, 89.0.4389.90, 89.0.4389.114, 89.0.4389.128, 90.0.4430.72, 90.0.4430.85, 90.0.4430.93, 90.0.4430.212, 91.0.4472.77, 91.0.4472.101, 91.0.4472.106, 91.0.4472.114, 91.0.4472.124, 91.0.4472.164, 92.0.4515.107, 92.0.4515.131, 92.0.4515.159, 93.0.4577.63, 93.0.4577.82, 94.0.4606.54, 94.0.4606.61

CPE2.3 External links

http://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html
http://crbug.com/1252918
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37975

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Information disclosure

EUVDB-ID: #VU56974

Risk: High

CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-37976

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in core in Google Chrome. A remote attacker can trick the victim to open a specially crafted web page and gain access to sensitive information.

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

Mitigation

Update to version 94.0.4606.71.

Vulnerable software versions

Google Chrome: 7.0.517.41, 7.0.517.44, 70.0.3538.67, 70.0.3538.77, 70.0.3538.102, 70.0.3538.110, 71.0.3578.80, 71.0.3578.98, 72.0.3626.81, 72.0.3626.96, 72.0.3626.109, 72.0.3626.119, 72.0.3626.121, 73.0.3683.75, 73.0.3683.86, 73.0.3683.103, 74.0.3729.108, 74.0.3729.131, 74.0.3729.157, 74.0.3729.169, 75.0.3770.80, 75.0.3770.90, 75.0.3770.100, 75.0.3770.142, 76.0.3809.87, 76.0.3809.100, 76.0.3809.132, 77.0.3865.75, 77.0.3865.90, 77.0.3865.120, 78.0.3904.70, 78.0.3904.87, 78.0.3904.97, 78.0.3904.108, 79.0.3945.79, 79.0.3945.88, 79.0.3945.117, 79.0.3945.130, 80.0.3987.87, 80.0.3987.100, 80.0.3987.106, 80.0.3987.116, 80.0.3987.122, 80.0.3987.132, 80.0.3987.149, 80.0.3987.162, 80.0.3987.163, 81.0.4044.92, 81.0.4044.113, 81.0.4044.122, 81.0.4044.129, 81.0.4044.138, 83.0.4103.61, 83.0.4103.97, 83.0.4103.106, 83.0.4103.116, 84.0.4147.89, 84.0.4147.105, 84.0.4147.125, 84.0.4147.135, 85.0.4183.83, 85.0.4183.102, 85.0.4183.121, 86.0.4240.75, 86.0.4240.111, 86.0.4240.183, 86.0.4240.193, 86.0.4240.198, 87.0.4280.66, 87.0.4280.88, 87.0.4280.141, 88.0.4324.96, 88.0.4324.104, 88.0.4324.146, 88.0.4324.150, 88.0.4324.182, 88.0.4324.190, 89.0.4389.72, 89.0.4389.82, 89.0.4389.90, 89.0.4389.114, 89.0.4389.128, 90.0.4430.72, 90.0.4430.85, 90.0.4430.93, 90.0.4430.212, 91.0.4472.77, 91.0.4472.101, 91.0.4472.106, 91.0.4472.114, 91.0.4472.124, 91.0.4472.164, 92.0.4515.107, 92.0.4515.131, 92.0.4515.159, 93.0.4577.63, 93.0.4577.82, 94.0.4606.54, 94.0.4606.61

CPE2.3 External links

http://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html
http://crbug.com/1251787
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37976

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.



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