CVE-2020-24388 describes a denial-of-service vulnerability in yubihsm-shell versions through 2.0.2, affecting products like fedoraproject and yubico yubihsm-shell. The flaw lies in the _send_secure_msg() function, which fails to validate the length field of messages from the device. This oversight can lead to an oversized memcpy() operation, causing the running process to crash. The vulnerability has a CVSS v3.1 score of 7.5 (High), indicating it can be exploited remotely with low attack complexity and no user interaction, resulting in a high impact on availability. It is categorized under CWE-20 (Improper Input Validation) and CWE-787 (Out-of-bounds Write). Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness or attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.0.2CPE matchmatch criteria | cpe:2.3:a:yubico:yubihsm-shell:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.