Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-c-aresalpine-linux-upgrade-nodejs | Aug 30, 2017 | Oct 3, 2016 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Oct 3, 2016 | |
| Debian | debian-upgrade-c-ares | Oct 7, 2016 | Sep 30, 2016 | |
| Freebsd | freebsd-upgrade-package-node010freebsd-upgrade-package-node012freebsd-upgrade-package-node4 | Nov 14, 2016 | Oct 26, 2016 | |
| Gentoo Linux | gentoo-linux-upgrade-net-dns-c-ares | Oct 30, 2017 | Oct 3, 2016 | |
| Huawei Euleros 2_0_sp2 | huawei-euleros-2_0_sp2-upgrade-c-areshuawei-euleros-2_0_sp2-upgrade-c-ares-devel | Sep 12, 2019 | Oct 3, 2016 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-c-areshuawei-euleros-2_0_sp3-upgrade-c-ares-devel | Sep 25, 2019 | Oct 3, 2016 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-c-areshuawei-euleros-2_0_sp5-upgrade-c-ares-devel | Aug 16, 2019 | Oct 3, 2016 | |
| Redhat_linux | — | no-fix-redhat-rpm-package | Jul 9, 2025 | Sep 29, 2016 |
| Suse | — | suse-upgrade-c-ares-develsuse-upgrade-libcares-develsuse-upgrade-libcares2suse-upgrade-libcares2-32bitsuse-upgrade-nodejs4suse-upgrade-nodejs4-develsuse-upgrade-nodejs4-docssuse-upgrade-npm4 | Nov 9, 2016 | Oct 3, 2016 |
| Ubuntu | ubuntu-upgrade-libc-ares2 | Nov 30, 2016 | Oct 3, 2016 |
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