CVE-2020-8277

c-ares: ares_parse_{a,aaaa}_reply() insufficient naddrttls validation DoS

Published Nov 19, 2020 CVSS 3.1 · 7.5 High EPSS 54.2% KEV · Not listed
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.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-4638-1 c-ares vulnerability
History

No history.

Weaknesses
  • CWE-119

    Improper Restriction of Operations within the Bounds of a Memory Buffer

  • CWE-400

    Uncontrolled Resource Consumption

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Apr 30, 2025, 10:24 PM
Reserved
Jan 28, 2020, 12:00 AM
Status
Modified
Published
Nov 19, 2020, 1:15 AM
Modified
Jun 17, 2026, 3:26 AM
Severity
Moderate
Public date
Nov 12, 2020, 12:00 AM