GHSA-8m9g-647g-5pxw
Infinite loop in Yubico yubihsm-connector
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/Yubico/yubihsm-connector | < 3.0.1 | 3.0.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.