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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| C-ares | C-ares_project | * | 1.19.1 (excluding) |
| C-ares | Ubuntu | bionic | * |
| C-ares | Ubuntu | esm-infra/bionic | * |
| C-ares | Ubuntu | esm-infra/xenial | * |
| C-ares | Ubuntu | focal | * |
| C-ares | Ubuntu | jammy | * |
| C-ares | Ubuntu | kinetic | * |
| C-ares | Ubuntu | lunar | * |
| C-ares | Ubuntu | trusty | * |
| C-ares | Ubuntu | upstream | * |
| C-ares | Ubuntu | xenial | * |
| Red Hat Enterprise Linux 7 | RedHat | c-ares-0:1.10.0-3.el7_9.1 | * |
| Red Hat Enterprise Linux 8 | RedHat | nodejs:16-8080020230608150024.63b34585 | * |
| Red Hat Enterprise Linux 8 | RedHat | nodejs:18-8080020230607122508.63b34585 | * |
| Red Hat Enterprise Linux 8 | RedHat | c-ares-0:1.13.0-6.el8_8.2 | * |
| Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | c-ares-0:1.13.0-5.el8_1.1 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | c-ares-0:1.13.0-5.el8_2.1 | * |
| Red Hat Enterprise Linux 8.2 Telecommunications Update Service | RedHat | c-ares-0:1.13.0-5.el8_2.1 | * |
| Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | RedHat | c-ares-0:1.13.0-5.el8_2.1 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | c-ares-0:1.13.0-5.el8_4.2 | * |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | c-ares-0:1.13.0-5.el8_4.2 | * |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | c-ares-0:1.13.0-5.el8_4.2 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | nodejs:16-8060020230620060944.ad008a3a | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | c-ares-0:1.13.0-6.el8_6.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | c-ares-0:1.17.1-5.el9_2.1 | * |
| Red Hat Enterprise Linux 9 | RedHat | nodejs:18-9020020230531092345.rhel9 | * |
| Red Hat Enterprise Linux 9 | RedHat | nodejs-1:16.19.1-2.el9_2 | * |
| Red Hat Enterprise Linux 9 | RedHat | c-ares-0:1.17.1-5.el9_2.1 | * |
| Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | c-ares-0:1.17.1-5.el9_0.1 | * |
| Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | nodejs-1:16.18.1-4.el9_0 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-nodejs14-nodejs-0:14.21.3-4.el7 | * |