Vulnerability · Published May 25, 2023 · Assigned by GitHub_M
CVE-2023-320670-byte UDP payload DoS in c-ares
High 7.5
In plain English
A high-severity uncontrolled resource consumption in c-ares from c-ares. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.6%top 24.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | c-ares | 1.13.0-6.el8_8.2 | ALSA-2023:3584 |
| AlmaLinux:9 | c-ares | 1.17.1-5.el9_2.1 | ALSA-2023:3559 |
| AlmaLinux:8 | c-ares-devel | 1.13.0-6.el8_8.2 | ALSA-2023:3584 |
| AlmaLinux:9 | c-ares-devel | 1.17.1-5.el9_2.1 | ALSA-2023:3559 |
| AlmaLinux:8 | nodejs | 1:16.19.1-2.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:8 | nodejs | 1:18.14.2-3.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs | 1:16.19.1-2.el9_2 | ALSA-2023:3586 |
| AlmaLinux:9 | nodejs | 1:18.14.2-3.module_el9.2.0+30+e3312493 | ALSA-2023:3577 |
| AlmaLinux:8 | nodejs-devel | 1:18.14.2-3.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:8 | nodejs-devel | 1:16.19.1-2.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:9 | nodejs-devel | 1:18.14.2-3.module_el9.2.0+30+e3312493 | ALSA-2023:3577 |
| AlmaLinux:8 | nodejs-docs | 1:16.19.1-2.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:8 | nodejs-docs | 1:18.14.2-3.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs-docs | 1:18.14.2-3.module_el9.2.0+30+e3312493 | ALSA-2023:3577 |
| AlmaLinux:9 | nodejs-docs | 1:16.19.1-2.el9_2 | ALSA-2023:3586 |
| AlmaLinux:8 | nodejs-full-i18n | 1:16.19.1-2.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:8 | nodejs-full-i18n | 1:18.14.2-3.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs-full-i18n | 1:18.14.2-3.module_el9.2.0+30+e3312493 | ALSA-2023:3577 |
| AlmaLinux:9 | nodejs-full-i18n | 1:16.19.1-2.el9_2 | ALSA-2023:3586 |
| AlmaLinux:9 | nodejs-libs | 1:16.19.1-2.el9_2 | ALSA-2023:3586 |
| AlmaLinux:8 | nodejs-nodemon | 2.0.20-3.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:8 | nodejs-nodemon | 2.0.20-2.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs-nodemon | 2.0.20-2.module_el9.2.0+29+de583a0b | ALSA-2023:3577 |
| AlmaLinux:8 | nodejs-packaging | 25-1.module_el8.5.0+2605+45d748af | ALSA-2023:4034 |
| AlmaLinux:8 | nodejs-packaging | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs-packaging | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:3577 |
| AlmaLinux:8 | nodejs-packaging-bundler | 2021.06-4.module_el8.7.0+3343+ea2b7901 | ALSA-2023:4035 |
| AlmaLinux:9 | nodejs-packaging-bundler | 2021.06-4.module_el9.1.0+13+d9a595ea | ALSA-2023:3577 |
| AlmaLinux:8 | npm | 1:8.19.3-1.16.19.1.2.module_el8.8.0+3586+d4fc0b72 | ALSA-2023:4034 |
| AlmaLinux:8 | npm | 1:9.5.0-1.18.14.2.3.module_el8.8.0+3587+ee652244 | ALSA-2023:4035 |
| AlmaLinux:9 | npm | 1:8.19.3-1.16.19.1.2.el9_2 | ALSA-2023:3586 |
| AlmaLinux:9 | npm | 1:9.5.0-1.18.14.2.3.module_el9.2.0+30+e3312493 | ALSA-2023:3577 |
| Debian:12 | c-ares | 1.18.1-3 | DEBIAN-CVE-2023-32067 |
| Debian:13 | c-ares | 1.18.1-3 | DEBIAN-CVE-2023-32067 |
| Debian:14 | c-ares | 1.18.1-3 | DEBIAN-CVE-2023-32067 |
| Rocky Linux:8 | c-ares | 0:1.13.0-6.el8_8.2 | RLSA-2023:3584 |
| Rocky Linux:9 | c-ares | 0:1.17.1-5.el9_2.1 | RLSA-2023:3559 |
| Rocky Linux:8 | nodejs | 1:16.19.1-2.module+el8.8.0+1338+00a07a77 | RLSA-2023:4034 |
| Rocky Linux:8 | nodejs | 1:18.14.2-3.module+el8.8.0+1337+7ea46b57 | RLSA-2023:4035 |
| Rocky Linux:8 | nodejs-nodemon | 0:2.0.20-2.module+el8.7.0+1177+510ae886 | RLSA-2023:4035 |
| Rocky Linux:8 | nodejs-nodemon | 0:2.0.20-3.module+el8.7.0+1178+d52dba78 | RLSA-2023:4034 |
| Rocky Linux:9 | nodejs-nodemon | 0:2.0.20-2.module+el9.6.0+32048+5323bb50 | RLSA-2023:3577 |
| Rocky Linux:8 | nodejs-packaging | 0:25-1.module+el8.7.0+1108+49363b0d | RLSA-2023:4034 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-4.module+el8.7.0+1072+5b168780 | RLSA-2023:4035 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32144+1d29a396 | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32322+a8b1fd01 | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32143+ae966e5b | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32048+5323bb50 | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.5.0+31770+0da7192d | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32185+bd121a25 | RLSA-2023:3577 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-4.module+el9.6.0+32045+2e5d342d | RLSA-2023:3577 |
| Ubuntu:22.04:LTS | c-ares | 1.18.1-1ubuntu0.22.04.2 | USN-6164-1 |
| Ubuntu:22.04:LTS | c-ares | 1.18.1-1ubuntu0.22.04.2 | UBUNTU-CVE-2023-32067 |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/c-ares/c-ares/security/advisories/GHSA-9g78-jv2r-p7vc x_refsource_CONFIRM
- https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1 x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
- https://www.debian.org/security/2023/dsa-5419
- https://lists.debian.org/debian-lts-announce/2023/06/msg00034.html
- https://security.gentoo.org/glsa/202310-09
- https://security.netapp.com/advisory/ntap-20240605-0004/