Denial of service in Node.js
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-8277 |
| CWE-ID | CWE-399 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
Node.js Server applications / Web servers |
| Vendor | Node.js Foundation |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource management error
EUVDB-ID: #VU48569
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-8277
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when processing a large number of DNS responses. A Node.js application that allows an attacker to trigger a DNS request
for a host of their choice could trigger a denial of service condition.
Install updates from vendor's website.
Vulnerable software versionsNode.js: 12.0.0 - 15.2.0
External linkshttp://hackerone.com/reports/1033107
http://nodejs.org/en/blog/vulnerability/november-2020-security-releases/
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.
