medium4.4
CVE-2021-27217
An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3.
Impact
An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3. The function does not correctly validate the embedded length field of an authenticated message received from the device. Out-of-bounds reads performed by aes_remove_padding() can crash the running process, depending on the memory layout. This could be used by an attacker to cause a client-side denial of service. The yubihsm-shell project is included in the YubiHSM 2 SDK product.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Yubico | Yubihsm-Shell | through 2.0.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://blog.inhq.net/posts/yubico-libyubihsm-vuln2
- https://github.com/Yubico/yubihsm-shell/releases
- https://www.yubico.com/support/security-advisories/ysa-2021-01/
- https://blog.inhq.net/posts/yubico-libyubihsm-vuln2
- https://github.com/Yubico/yubihsm-shell/releases
- https://www.yubico.com/support/security-advisories/ysa-2021-01/