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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-05-25T22:49:55.860Z

Updated: 2024-08-02T15:03:28.668Z

Reserved: 2023-05-01T16:47:35.314Z

Link: CVE-2023-32067

cve-icon Vulnrichment

Updated: 2024-08-02T15:03:28.668Z

cve-icon NVD

Status : Modified

Published: 2023-05-25T23:15:09.380

Modified: 2024-11-21T08:02:38.797

Link: CVE-2023-32067

cve-icon Redhat

Severity : Important

Publid Date: 2023-05-22T00:00:00Z

Links: CVE-2023-32067 - Bugzilla