Multiple vulnerabilities in WebKitGTK



Published: 2021-05-03 | Updated: 2021-06-03
Risk Critical
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-30665
CVE-2021-30663
CWE-ID CWE-119
CWE-190
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerability #2 is being exploited in the wild.
Vulnerable software
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WebKitGTK+
Server applications / Frameworks for developing and running applications

Vendor WebKitGTK

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated: 03.06.2021

Changed bulletin status to patched.

1) Buffer overflow

EUVDB-ID: #VU52815

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2021-30665

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 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.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.30.0 - 2.32.0


CPE2.3 External links

http://support.apple.com/en-us/HT212335

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Integer overflow

EUVDB-ID: #VU52814

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2021-30663

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in WebKit. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger integer overflow and execute arbitrary code on the target system.

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

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.30.0 - 2.32.0


CPE2.3 External links

http://support.apple.com/en-us/HT212335

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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