Improper Input Validation Affecting github.com/yubico/yubihsm-connector Open this link in a new tab package, versions <3.0.1
Attack Complexity
Low
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snyk-id
SNYK-GOLANG-GITHUBCOMYUBICOYUBIHSMCONNECTOR-1246475
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published
15 Apr 2021
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disclosed
15 Apr 2021
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credit
Unknown
Introduced: 15 Apr 2021
CVE-2021-28484 Open this link in a new tabHow to fix?
Upgrade github.com/Yubico/yubihsm-connector
to version 3.0.1 or higher.
Overview
github.com/Yubico/yubihsm-connector is a YubiHSM Connector
Affected versions of this package are vulnerable to Improper Input Validation. An issue was discovered in the /api/connector
endpoint handler in Yubico yubihsm-connector
(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.