Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2020-8277

Uncontrolled Resource Consumption

Published: Nov 19, 2020 | Modified: Nov 21, 2024
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-8277
CWEhttps://cwe.mitre.org/data/definitions/400.html

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 in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

NameVendorStart VersionEnd Version
Node.jsNodejs12.16.3 (including)12.19.1 (excluding)
Node.jsNodejs14.13.0 (including)14.15.1 (excluding)
Node.jsNodejs15.0.0 (including)15.2.1 (excluding)
Red Hat Enterprise Linux 8RedHatnodejs:12-8030020201124152102.229f0a1c*
Red Hat Enterprise Linux 8RedHatnodejs:14-8030020210126165503.229f0a1c*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-nodejs12-nodejs-0:12.19.1-2.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7RedHatrh-nodejs14-nodejs-0:14.15.4-2.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHatrh-nodejs12-nodejs-0:12.19.1-2.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUSRedHatrh-nodejs14-nodejs-0:14.15.4-2.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSRedHatrh-nodejs12-nodejs-0:12.19.1-2.el7*
Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSRedHatrh-nodejs14-nodejs-0:14.15.4-2.el7*
C-aresUbuntudevel*
C-aresUbuntugroovy*
C-aresUbuntutrusty*

Potential Mitigations

  • Mitigation of resource exhaustion attacks requires that the target system either:

  • The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

  • The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

References

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