Use-after-free in Node.js

1) Use-after-free

EUVDB-ID: #VU61254

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22940

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. A remote attacker can change process behavior.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 12.0.0 - 16.6.0

External links

http://hackerone.com/reports/1238162
http://nodejs.org/en/blog/vulnerability/aug-2021-security-releases/
http://security.netapp.com/advisory/ntap-20210923-0001/
http://www.oracle.com/security-alerts/cpuoct2021.html
http://www.oracle.com/security-alerts/cpujan2022.html

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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