CVE-2023-32067 — 0-byte UDP payload DoS in c-ares
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 leng…
Published: 2023-05-25 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7