Vulnerability identifier: #VU50235

Vulnerability risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1799

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
WebKitGTK+
Server applications / Frameworks for developing and running applications
WPE WebKit
Server applications / Frameworks for developing and running applications

Vendor: WebKitGTK

Description

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

The vulnerability exists due to a port redirection issue in WebRTC. A remote attacker can gain unauthorized access to sensitive information, such as open ports in the local network.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

WebKitGTK+: 2.0.0 - 2.31.90

WPE WebKit: 2.19.93 - 2.31.90

---

External links
http://support.apple.com/en-us/HT212147
http://webkitgtk.org/security/WSA-2021-0002.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.