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c-ares: Missing input validation of host names may lead to domain hijacking

🗓️ 26 Aug 2021 10:18:55Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 6 Views

The c-ares library lacks input validation for Domain Name System hostnames, risking domain hijacking.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 9 package c-ares version 1.17.2-alt1
19 Aug 202100:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package node version 14.17.5-alt1
17 Aug 202100:00
–altlinux
FreeBSD		py39-pycares -- domain hijacking vulnerability
11 Jun 202100:00
–freebsd
IBM Security Bulletins		Security Bulletin: IBM QRadar Use Case Manager app is vulnerable to using components with known vulnerabilities
20 Apr 202214:01
–ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar Data Synchronization App for IBM QRadar SIEM is vulnerable to using components with known vulnerabilities
31 May 202214:57
–ibm
ATTACKERKB		CVE-2021-3672
23 Nov 202119:15
–attackerkb
Tenable Nessus		Amazon Linux 2 : c-ares (ALAS-2024-2399)
9 Jan 202400:00
–nessus
Tenable Nessus		Amazon Linux AMI : c-ares (ALAS-2021-1545)
5 Nov 202100:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0072: nodejs:14 (ALINUX3-SA-2021:0072)
14 May 202500:00
–nessus
Tenable Nessus		AlmaLinux 8 : c-ares (ALSA-2022:2043)
12 May 202200:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64lerh-nodejs12-nodejs12.22.5-1.el7rh-nodejs12-nodejs-12.22.5-1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xrh-nodejs12-nodejs12.22.5-1.el7rh-nodejs12-nodejs-12.22.5-1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64rh-nodejs12-nodejs12.22.5-1.el7rh-nodejs12-nodejs-12.22.5-1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lerh-nodejs12-nodejs-debuginfo12.22.5-1.el7rh-nodejs12-nodejs-debuginfo-12.22.5-1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xrh-nodejs12-nodejs-debuginfo12.22.5-1.el7rh-nodejs12-nodejs-debuginfo-12.22.5-1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64rh-nodejs12-nodejs-debuginfo12.22.5-1.el7rh-nodejs12-nodejs-debuginfo-12.22.5-1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lerh-nodejs12-nodejs-devel12.22.5-1.el7rh-nodejs12-nodejs-devel-12.22.5-1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xrh-nodejs12-nodejs-devel12.22.5-1.el7rh-nodejs12-nodejs-devel-12.22.5-1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64rh-nodejs12-nodejs-devel12.22.5-1.el7rh-nodejs12-nodejs-devel-12.22.5-1.el7.x86_64.rpm
Red Hat Enterprise Linux7noarchrh-nodejs12-nodejs-docs12.22.5-1.el7rh-nodejs12-nodejs-docs-12.22.5-1.el7.noarch.rpm
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03 Jul 2026 02:10Current
7.1High risk
Vulners AI Score7.1
CVSS 3.15.6
CVSS 26.8
EPSS0.02617
SSVC
CWE-79
c-aresDomain Name Systemhostnamesdomain hijackinginput validation missing
6