CVE-2020-24388 - CVE House
Back to Database
Status published High CVE-2020-24388

An issue was discovered in the _send_secure_msg() function of yubihsm-shell...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-24388

Credits & Attribution

No credits recorded in the NVD database.

References

More from yubico

View All →
CVE-2022-24584
Incorrect access control in Yubico OTP functionality of the YubiKey...
Medium 6.5
CVE-2021-43399
The Yubico YubiHSM YubiHSM2 library 2021.08, included in the yubihsm-shell...
High 7.5
CVE-2021-32489
An issue was discovered in the _send_secure_msg() function of Yubico...
Medium 4.4
CVE-2021-31924
Yubico pam-u2f before 1.1.1 has a logic issue that, depending...
Medium 6.8
CVE-2021-28484
An issue was discovered in the /api/connector endpoint handler in...
High 7.5

Affected Vendor

Affected Software

yubihsm-shell, fedora
Vulnerable Versions:
0, 33

Timeline

Official Publish: October 19th, 2020
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.