c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.
CVSS Details
- CVSS 3.1 Base Score: 4.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade c-aresUpgrade nodejs-packaging-bundlerUpgrade npmUpgrade nodejs-libsUpgrade nodejs-full-i18nUpgrade nodejsUpgrade c-ares-develUpgrade nodejs-develUpgrade nodejs-nodemonUpgrade nodejs-docsUpgrade nodejs-packaging | Jun 27, 2023 | May 25, 2023 |
| Amazon Linux Ami 2 | — | Upgrade ecs-service-connect-agentUpgrade c-ares-develUpgrade c-ares-debuginfoUpgrade c-ares | Sep 28, 2023 | May 25, 2023 |
| Amazon_linux_2023 | — | Upgrade c-ares-debuginfoUpgrade ecs-service-connect-agentUpgrade c-aresUpgrade c-ares-develUpgrade c-ares-debugsource | Feb 17, 2025 | May 22, 2023 |
| Centos_linux | — | Upgrade c-ares-develUpgrade c-ares-debugsourceUpgrade nodejs-packagingUpgrade nodejs-docsUpgrade nodejs-libs-debuginfoUpgrade nodejs-develUpgrade nodejs-full-i18nUpgrade nodejs-debugsourceUpgrade nodejs-libsUpgrade nodejs-nodemonUpgrade nodejs-debuginfoUpgrade nodejsUpgrade c-ares-debuginfoUpgrade c-aresUpgrade npmUpgrade nodejs-packaging-bundler | Jun 15, 2023 | May 25, 2023 |
| Debian | — | Upgrade c-ares | Jun 8, 2023 | May 25, 2023 |
| Gentoo Linux | — | Upgrade net-dns/c-ares. | Oct 10, 2023 | May 25, 2023 |
| Huawei Euleros 2_0_sp10 | — | Upgrade c-ares | Jan 10, 2024 | May 25, 2023 |
| Huawei Euleros 2_0_sp11 | — | Upgrade c-ares | Jan 10, 2024 | May 25, 2023 |
| Huawei Euleros 2_0_sp8 | — | Upgrade c-ares-develUpgrade c-ares | Jan 10, 2024 | May 25, 2023 |
| Huawei Euleros 2_0_sp9 | — | Upgrade c-ares | Aug 9, 2023 | May 25, 2023 |
| Oracle_linux | — | Upgrade nodejs-full-i18nUpgrade nodejsUpgrade nodejs-libsUpgrade c-ares-develUpgrade nodejs-packagingUpgrade nodejs-nodemonUpgrade nodejs-develUpgrade npmUpgrade nodejs-packaging-bundlerUpgrade c-aresUpgrade nodejs-docs | Jun 15, 2023 | May 22, 2023 |
| Redhat_linux | — | Upgrade nodejs-nodemonUpgrade nodejs-libsUpgrade nodejs-packagingUpgrade nodejs-docsNo solution existsUpgrade nodejs-full-i18nUpgrade c-ares-debuginfoUpgrade nodejsUpgrade c-ares-debugsourceUpgrade c-ares-develUpgrade npmUpgrade nodejs-develUpgrade nodejs-debugsourceUpgrade c-aresUpgrade nodejs-packaging-bundlerUpgrade nodejs-debuginfoUpgrade nodejs-libs-debuginfo | Jun 15, 2023 | May 25, 2023 |
| Rocky_linux | — | Upgrade nodejs-debuginfoUpgrade nodejs-debugsourceUpgrade c-aresUpgrade c-ares-develUpgrade nodejs-full-i18nUpgrade nodejs-develUpgrade c-ares-debugsourceUpgrade npmUpgrade c-ares-debuginfoUpgrade nodejs | Mar 5, 2024 | May 25, 2023 |
| Suse | — | Upgrade corepack18Upgrade libcares2-32bitUpgrade nodejs16-docsUpgrade libcares-develUpgrade corepack16Upgrade npm18Upgrade nodejs18Upgrade npm16Upgrade libcares2Upgrade nodejs18-develUpgrade c-ares-utilsUpgrade nodejs16-develUpgrade nodejs16Upgrade nodejs18-docsUpgrade c-ares-devel | May 31, 2023 | May 25, 2023 |
| Ubuntu | — | Upgrade libc-ares2 (Ubuntu Pro)Upgrade libc-ares2 | Jun 15, 2023 | May 25, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 25, 2023 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub