Node.js 14 and 2 others: A flaw was found in c-ares library, where a missing input validation check of host names returned by…
CVE-2021-3672 is fixed in 13 products on 2 platforms, first by libc-ares2 1.14.0-1ubuntu0.1, released August 9, 2021. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Node.js 12 | 12.22.5 | Node.js 12 12.22.5 | Aug 11, 2021 |
| Node.js 14 | 14.17.5 | Node.js 14 14.17.5 | Aug 11, 2021 |
| Node.js 16 | 16.6.2 | Node.js 16 16.6.2 | Aug 11, 2021 |
| Linux | |||
| c-ares · Debian 12.15 (bookworm) | 1.17.1-1.1 | DEBIAN-CVE-2021-3672 | Nov 23, 2021 |
| c-ares · Debian 13.5 (trixie) | 1.17.1-1.1 | DEBIAN-CVE-2021-3672 | Nov 23, 2021 |
| c-ares · Debian 14 | 1.17.1-1.1 | DEBIAN-CVE-2021-3672 | Nov 23, 2021 |
| c-ares · RHEL 8 | 0:1.13.0-6.el8 | RHSA-2022:2043 | May 10, 2022 |
| c-ares · almalinux 8 | 1.13.0-6.el8 | ALSA-2022:2043 | May 10, 2022 |
| c-ares · ol 8 | 0:1.13.0-6.el8 | ELSA-2022-2043 | May 17, 2022 |
| c-ares · rocky 8 | 0:1.13.0-6.el8 | RLSA-2022:2043 | May 10, 2022 |
| c-ares-devel · RHEL 8 | 0:1.13.0-6.el8 | RHSA-2022:2043 | May 10, 2022 |
| c-ares-devel · almalinux 8 | 1.13.0-6.el8 | ALSA-2022:2043 | May 10, 2022 |
| c-ares-devel · ol 8 | 0:1.13.0-6.el8 | ELSA-2022-2043 | May 17, 2022 |
| libc-ares2 · Ubuntu 18.04.6 LTS (bionic) | 1.14.0-1ubuntu0.1 | libc-ares2 1.14.0-1ubuntu0.1 | Aug 9, 2021 |
| libc-ares2 · Ubuntu 20.04 LTS (focal) | 1.15.0-1ubuntu0.1 | libc-ares2 1.15.0-1ubuntu0.1 | Aug 9, 2021 |
| libc-ares2 · Ubuntu 22.04.1 LTS (jammy) | 1.17.1-1ubuntu1 | libc-ares2 1.17.1-1ubuntu1 | Aug 9, 2021 |
| nodejs · RHEL 8 | 1:14.17.5-1.module+el8.4.0+12247+e2879e58 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs · ol 8 | 1:14.17.5-1.module+el8.4.0+20313+f90c2973 | ELSA-2021-3666 | Sep 27, 2021 |
| nodejs-devel · RHEL 8 | 1:14.17.5-1.module+el8.4.0+12247+e2879e58 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs-devel · ol 8 | 1:14.17.5-1.module+el8.4.0+20313+f90c2973 | ELSA-2021-3666 | Sep 27, 2021 |
| nodejs-docs · RHEL 8 | 1:14.17.5-1.module+el8.4.0+12247+e2879e58 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs-docs · ol 8 | 1:14.17.5-1.module+el8.4.0+20313+f90c2973 | ELSA-2021-3666 | Sep 27, 2021 |
| nodejs-full-i18n · RHEL 8 | 1:14.17.5-1.module+el8.4.0+12247+e2879e58 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs-full-i18n · ol 8 | 1:14.17.5-1.module+el8.4.0+20313+f90c2973 | ELSA-2021-3666 | Sep 27, 2021 |
| nodejs-nodemon · RHEL 8 | 0:2.0.3-1.module+el8.3.0+6519+9f98ed83 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs-nodemon · ol 8 | 0:2.0.3-1.module+el8.3.0+7818+6cd30d85 | ELSA-2021-3666 | Sep 27, 2021 |
| nodejs-packaging · RHEL 8 | 0:23-3.module+el8.3.0+6519+9f98ed83 | RHSA-2021:3666 | Sep 27, 2021 |
| nodejs-packaging · ol 8 | 0:23-3.module+el8.3.0+7818+6cd30d85 | ELSA-2021-3666 | Sep 27, 2021 |
| npm · RHEL 8 | 1:6.14.14-1.14.17.5.1.module+el8.4.0+12247+e2879e58 | RHSA-2021:3666 | Sep 27, 2021 |
| npm · ol 8 | 1:6.14.14-1.14.17.5.1.module+el8.4.0+20313+f90c2973 | ELSA-2021-3666 | Sep 27, 2021 |
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