The Yubico YubiHSM YubiHSM2 library 2021.08, included in the yubihsm-shell project, does not properly validate the length of some operations including SSH signing requests, and some data operations received from a YubiHSM 2 device.Referenceshttps://www.yubico.com/support/security-advisories/ysa-2021-04/https://blog.inhq.net/posts/yubico-yubihsm-shell-vuln3/
