CVE-2020-24388
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Yubico Yubihsm-shell
PublishedOct 19, 2020
First seenOct 19, 2020
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| yubico yubihsm-shell | v ≤ 2.0.2 | — |
| fedoraproject fedora | 33 | — |
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