An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04). The handler did not validate the length of the request, which can lead to a state where yubihsm-connector becomes stuck in a loop waiting for the YubiHSM to send it data, preventing any further operations until the yubihsm-connector is restarted. An attacker can send 0, 1, or 2 bytes to trigger this.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-04-14T17:07:26

Updated: 2024-08-03T21:47:32.665Z

Reserved: 2021-03-16T00:00:00

Link: CVE-2021-28484

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-04-14T18:15:14.440

Modified: 2023-11-07T03:32:09.357

Link: CVE-2021-28484

cve-icon Redhat

No data.