Multiple vulnerabilities in WebKitGTK and WPE WebKit



Published: 2021-03-30
Risk Critical
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-1788
CVE-2021-1844
CVE-2021-1871
CWE-ID CWE-416
CWE-119
CWE-840
Exploitation vector Network
Public exploit Vulnerability #3 is being exploited in the wild.
Vulnerable software
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WebKitGTK+
Server applications / Frameworks for developing and running applications

WPE WebKit
Server applications / Frameworks for developing and running applications

Vendor WebKitGTK
WPE WebKit

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU50231

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-1788

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 in WebKit. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a use-after-free error and execute arbitrary code on the system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.0.0 - 2.31.90

WPE WebKit: 2.19.93 - 2.31.90


CPE2.3 External links

http://webkitgtk.org/security/WSA-2021-0003.html

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Buffer overflow

EUVDB-ID: #VU51268

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-1844

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing web content in WebKit. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

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

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.0.0 - 2.31.90

WPE WebKit: 2.19.93 - 2.31.90


CPE2.3 External links

http://webkitgtk.org/security/WSA-2021-0003.html

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Business Logic Errors

EUVDB-ID: #VU50044

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2021-1871

CWE-ID: CWE-840 - Business Logic Errors (3.0)

Exploit availability: No

Description

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

The vulnerability exists due to a logic issue in the WebKit component. A remote attacker can trick a victim to visit a malicious website and execute arbitrary code on the system.

Note: The vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.0.0 - 2.31.90

WPE WebKit: 2.19.93 - 2.31.90


CPE2.3 External links

http://webkitgtk.org/security/WSA-2021-0003.html

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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