#VU57455 Use-after-free


Published: 2021-10-19 | Updated: 2021-10-21

Vulnerability identifier: #VU57455

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-37993

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 compromise vulnerable system.

The vulnerability exists due to a use-after-free error within PDF Accessibility in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

Mitigation
Update to version 95.0.4638.54.

Vulnerable software versions

Google Chromium: 95.0.4638.0 - 95.0.4638.53


CPE

External links
http://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_19.html
http://crbug.com/1255332
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37993


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.


Latest bulletins with this vulnerability