#VU29860 Improperly implemented security check for standard in Google Chrome - CVE-2020-6514

Vulnerability identifier: #VU29860

Vulnerability risk: Medium

CVSSv4.0: 5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2020-6514

CWE-ID: CWE-358

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Google Chrome
Client/Desktop applications / Web browsers

Vendor: Google

Description

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

The vulnerability exists due to WebRTC used the memory address of a class instance as a connection identifier. A remote attacker can use the obtained value to bypass ASLR protection.

Mitigation
Update to version 84.0.4147.89.

Vulnerable software versions

Google Chrome: 80.0.3987.163 - 83.0.4103.116

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External links
https://chromereleases.googleblog.com/2020/07/stable-channel-update-for-desktop.html
https://crbug.com/1076703

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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. However, proof of concept for this vulnerability is available.