Multiple vulnerabilities in Google Chrome



| Updated: 2021-12-15
Risk Critical
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2021-4098
CVE-2021-4099
CVE-2021-4100
CVE-2021-4101
CVE-2021-4102
CWE-ID CWE-20
CWE-416
CWE-664
CWE-122
Exploitation vector Network
Public exploit Vulnerability #5 is being exploited in the wild.
Vulnerable software
 Google Chrome
Client/Desktop applications / Web browsers

Vendor Google

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU58846

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-2021-4098

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when processing HTML content in Mojo. Chrome Critical. A remote attacker can trick the victim to open a specially crafted web page and execute arbitrary code on the target system.

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

Mitigation

Update to version 96.0.4664.110.

Vulnerable software versions

Google Chrome: 70.0.3538.67 - 96.0.4664.93

CPE2.3 External links

http://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
http://crbug.com/1263457
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4098


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: #VU58842

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-2021-4099

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 Swiftshader 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 96.0.4664.110.

Vulnerable software versions

Google Chrome: 70.0.3538.67 - 96.0.4664.93

CPE2.3 External links

http://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
http://crbug.com/1270658
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4099


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.

3) Improper control of a resource through its lifetime

EUVDB-ID: #VU58843

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-4100

CWE-ID: CWE-664 - Improper control of a resource through its lifetime

Exploit availability: No

Description

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

The vulnerability exists due to improper control of object lifetime 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.

Mitigation

Update to version 96.0.4664.110.

Vulnerable software versions

Google Chrome: 70.0.3538.67 - 96.0.4664.93

CPE2.3 External links

http://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
http://crbug.com/1272068
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4100


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.

4) Heap-based buffer overflow

EUVDB-ID: #VU58844

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-2021-4101

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

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

Mitigation

Update to version 96.0.4664.110.

Vulnerable software versions

Google Chrome: 70.0.3538.67 - 96.0.4664.93

CPE2.3 External links

http://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
http://crbug.com/1262080
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4101


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.

5) Use-after-free

EUVDB-ID: #VU58845

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-2021-4102

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 engine. 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 96.0.4664.110.

Vulnerable software versions

Google Chrome: 70.0.3538.67 - 96.0.4664.93

CPE2.3 External links

http://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html
http://crbug.com/1278387
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4102


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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