Description
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
Published: 2021-11-23
Score: 5.6 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2738-1 c-ares security update
Debian DSA Debian DSA DSA-4954-1 c-ares security update
Ubuntu USN Ubuntu USN USN-5034-1 c-ares vulnerability
Ubuntu USN Ubuntu USN USN-5034-2 c-ares vulnerability
History

Tue, 15 Oct 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

C-ares Project C-ares
Fedoraproject Fedora
Nodejs Node.js
Pgbouncer Pgbouncer
Redhat Enterprise Linux Enterprise Linux Computer Node Enterprise Linux Eus Enterprise Linux For Ibm Z Systems Enterprise Linux For Ibm Z Systems Eus Enterprise Linux For Power Little Endian Enterprise Linux For Power Little Endian Eus Enterprise Linux Server Aus Enterprise Linux Server Tus Enterprise Linux Server Update Services For Sap Solutions Enterprise Linux Tus Enterprise Linux Workstation Rhel Eus Rhel Software Collections
Siemens Sinec Infrastructure Network Services
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-10-15T17:14:27.220Z

Reserved: 2021-07-30T00:00:00.000Z

Link: CVE-2021-3672

cve-icon Vulnrichment

Updated: 2024-08-03T17:01:07.975Z

cve-icon NVD

Status : Modified

Published: 2021-11-23T19:15:07.877

Modified: 2024-11-21T06:22:07.650

Link: CVE-2021-3672

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-08-10T00:00:00Z

Links: CVE-2021-3672 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses