CVE-2020-8277

Description

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.

How to fix CVE-2020-8277

To remediate CVE-2020-8277, upgrade the affected package to a fixed version below.

• Alpine/nodejs—upgrade to 12.20.1-r0 or later
• —upgrade to 12.19.1 or later
• —upgrade to 12.19.1 or later
• —upgrade to 1.17.1-1 or later

Is CVE-2020-8277 being exploited?

Likely — EPSS is 58.9%, placing CVE-2020-8277 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.

Affected packages (4)

• from 0, < 12.20.1-r0
• >= 12.16.3, < 12.19.1, >= 14.13.0, < 14.15.1, >= 15.0.0, < 15.2.1
• >= 12.16.3, < 12.19.1, >= 14.13.0, < 14.15.1, >= 15.0.0, < 15.2.1
• from 0, < 1.17.1-1

CVSS scores

References (16)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2020-8277
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-8277
• WEBhackerone.com/reports/1033107
• WEBlists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7WH7W46OZSEUHWBHD7TCH3LRFY52V6Z/