cve/2020/CVE-2020-24388.md

CVE-2020-24388

Description

An issue was discovered in the _send_secure_msg() function of yubihsm-shell through 2.0.2. The function does not validate the embedded length field of a message received from the device. This could lead to an oversized memcpy() call that will crash the running process. This could be used by an attacker to cause a denial of service.

POC

Reference

• https://blog.inhq.net/posts/yubico-libyubihsm-vuln/
• https://blog.inhq.net/posts/yubico-libyubihsm-vuln/

Github

No PoCs found on GitHub currently.