Remote code execution in WebKitGTK and WPE WebKit

1) Use-after-free

EUVDB-ID: #VU26076

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-10018

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 when processing web conftent. A remote attacker can trick a victim to visit a specially crafted web page, 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

Install updates from vendor's website.

Vulnerable software versions

WPE WebKit: 0.1 - 2.27.91

WebKitGTK+: 1.2.0 - 2.27.91

CPE2.3

• cpe:2.3:a:webkitgtk:wpe_webkit:0.1:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:wpe_webkit:0.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:wpe_webkit:0.3.91:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:webkitgtk_plus:1.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:webkitgtk_plus:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:webkitgtk:webkitgtk_plus:1.2.2:*:*:*:*:*:*:*

External links

https://bugs.webkit.org/show_bug.cgi?id=204342#c21
https://webkitgtk.org/security/WSA-2020-0003.html
https://wpewebkit.org/security/WSA-2020-0003.html

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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