Security Advisory

CVE-2021-27217

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-03-04 17:45:33

Last updated 2024-08-03 20:40:47

Assigner mitre

State PUBLISHED

Description

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.

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