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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade npmUpgrade nodejs-docsUpgrade nodejs-develUpgrade nodejs-nodemonUpgrade c-aresUpgrade nodejs-packagingUpgrade nodejs-full-i18nUpgrade nodejsUpgrade c-ares-devel | May 4, 2022 | Nov 23, 2021 |
| Alpine Linux | — | Upgrade nodejs-currentUpgrade c-aresUpgrade nodejs | Mar 26, 2024 | Nov 23, 2021 |
| Amazon Linux Ami 2 | — | Upgrade c-aresUpgrade c-ares-debuginfoUpgrade c-ares-devel | Jan 10, 2024 | Nov 23, 2021 |
| Amazon_linux | — | Upgrade c-ares | Nov 5, 2021 | Aug 10, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Nov 23, 2021 |
| Centos_linux | — | Upgrade c-ares-develUpgrade nodejsUpgrade c-ares-debugsourceUpgrade c-ares-debuginfoUpgrade nodejs-nodemonUpgrade nodejs-packagingUpgrade nodejs-docsUpgrade nodejs-develUpgrade nodejs-full-i18nUpgrade nodejs-debuginfoUpgrade npmUpgrade nodejs-debugsourceUpgrade c-ares | Sep 22, 2021 | Sep 21, 2021 |
| Debian | — | Upgrade c-ares | Aug 12, 2021 | Aug 12, 2021 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Oct 15, 2021 |
| Freebsd | — | Upgrade py39-pycares | Apr 14, 2023 | Apr 9, 2023 |
| Gentoo Linux | — | Upgrade net-dns/c-ares.Upgrade net-libs/nodejs. | Jan 8, 2024 | Nov 23, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade c-aresUpgrade c-ares-devel | Oct 26, 2021 | Oct 25, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade c-aresUpgrade c-ares-devel | Nov 12, 2021 | Oct 25, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade c-ares-develUpgrade c-ares | Nov 2, 2021 | Oct 25, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade c-ares | Nov 12, 2021 | Oct 25, 2021 |
| Oracle Solaris | — | Upgrade library/libcares to version 1.17.2-11.4.37.0.1.101.1 on Solaris 11.4 | Oct 12, 2021 | Oct 12, 2021 |
| Oracle_linux | — | Upgrade nodejs-develUpgrade c-aresUpgrade nodejs-docsUpgrade c-ares-develUpgrade nodejsUpgrade nodejs-full-i18nUpgrade nodejs-nodemonUpgrade nodejs-packagingUpgrade npm | Sep 23, 2021 | Aug 10, 2021 |
| Redhat_linux | — | Upgrade c-ares-develUpgrade nodejs-nodemonNo solution existsUpgrade nodejs-docsUpgrade npmUpgrade c-ares-debuginfoUpgrade c-ares-debugsourceUpgrade nodejs-packagingUpgrade nodejs-full-i18nUpgrade c-aresUpgrade nodejs-debuginfoUpgrade nodejs-debugsourceUpgrade nodejs-develUpgrade nodejs | Sep 22, 2021 | Sep 21, 2021 |
| Rocky_linux | — | Upgrade nodejsUpgrade nodejs-debuginfoUpgrade c-aresUpgrade nodejs-develUpgrade nodejs-debugsourceUpgrade c-ares-debuginfoUpgrade npmUpgrade c-ares-develUpgrade nodejs-full-i18nUpgrade c-ares-debugsource | May 11, 2022 | Nov 23, 2021 |
| Suse | — | Upgrade nodejs12Upgrade npm14Upgrade nodejs12-docsUpgrade nodejs10-docsUpgrade nodejs12-develUpgrade nodejs14-develUpgrade nodejs10Upgrade libcares2-32bitUpgrade c-ares-develUpgrade npm10Upgrade nodejs14Upgrade npm12Upgrade libcares-develUpgrade c-ares-utilsUpgrade nodejs14-docsUpgrade libcares2Upgrade nodejs10-devel | Aug 11, 2021 | Aug 10, 2021 |
| Ubuntu | — | Upgrade libc-ares2 (Ubuntu Pro)Upgrade libc-ares2 | Aug 11, 2021 | Aug 10, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Nov 23, 2021 |
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