#VU56212 Use-after-free in Google Chromium - CVE-2021-30623

Vulnerability identifier: #VU56212

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-30623

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

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

Vendor: Google

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to use-after-free error in Bookmarks in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.

Mitigation
Update to version 93.0.4577.63.

Vulnerable software versions

Google Chromium: 93.0.4577.0 - 93.0.4577.62

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External links
https://chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop_31.html
https://crbug.com/1223667

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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.