#VU49254 Use-after-free in Node.js - CVE-2020-8265

Vulnerability identifier: #VU49254

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-8265

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

The vulnerability allows a remote attacker to perform a DoS attack..

The vulnerability exists due to a use-after-free error in TLSWrap within the TLS implementation. A remote attacker can send specially crafted data to the service and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Node.js: 10.0.0, 10.1.0 - 10.19.0, 10.2.0 - 10.23.0, 10.3.0, 10.4.0 - 10.4.1, 10.5.0, 10.6.0, 10.7.0, 10.8.0, 10.9 - 10.9.0, 11.0.0, 11.1.0 - 11.15.0, 11.2.0, 11.3.0, 11.4.0, 11.5.0, 11.6.0, 11.7.0, 11.8.0, 11.9.0, 12.0.0, 12.1.0 - 12.19.1, 12.2.0 - 12.20.0, 12.3.0 - 12.3.1, 12.4.0, 12.5.0, 12.6.0, 12.7.0, 12.8.0 - 12.8.1, 12.9.0 - 12.9.1, 13.0.0 - 13.0.1, 13.1.0 - 13.14.0, 13.2.0, 13.3.0, 13.4.0, 13.5.0, 13.6.0, 13.7.0, 13.8.0, 13.9.0, 14.0.0, 14.1.0 - 14.15.3, 14.2.0, 14.3.0, 14.4.0, 14.5.0, 14.6.0, 14.7.0, 14.8.0, 14.9.0, 15.0.0 - 15.0.1, 15.1.0, 15.2.0 - 15.2.1, 15.3.0, 15.4.0, 15.5.0

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External links
https://nodejs.org/en/blog/release/v10.23.1/
https://nodejs.org/en/blog/release/v12.20.1/
https://nodejs.org/en/blog/release/v14.15.4/
https://nodejs.org/en/blog/release/v15.5.1/

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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.