CVE-2021-28484

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28484
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28484.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-28484
Aliases
Published
2021-04-14T18:15:14Z
Modified
2025-01-08T08:02:28.182975Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in the /api/connector endpoint handler in Yubico yubihsm-connector before 3.0.1 (in YubiHSM SDK before 2021.04). The handler did not validate the length of the request, which can lead to a state where yubihsm-connector becomes stuck in a loop waiting for the YubiHSM to send it data, preventing any further operations until the yubihsm-connector is restarted. An attacker can send 0, 1, or 2 bytes to trigger this.

References

Affected packages

Git / github.com/yubico/yubihsm-connector

Affected ranges

Type
GIT
Repo
https://github.com/yubico/yubihsm-connector
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

2.*

2.0.0
2.1.0
2.2.0

3.*

3.0.0