High severityNVD Advisory· Published Apr 14, 2021· Updated Aug 3, 2024
CVE-2021-28484
CVE-2021-28484
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/Yubico/yubihsm-connectorGo | < 3.0.1 | 3.0.1 |
Affected products
2- Yubico/yubihsm-connectordescription
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-8m9g-647g-5pxwghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7Q2KGXSPQEEONAWMFZRVH2TXWX3QPCQ/mitrevendor-advisoryx_refsource_FEDORA
- nvd.nist.gov/vuln/detail/CVE-2021-28484ghsaADVISORY
- github.com/Yubico/yubihsm-connector/commit/82bdf202c53460bac9106cc9b4b34a0a16cae0edghsaWEB
- github.com/Yubico/yubihsm-connector/releasesghsax_refsource_MISCWEB
- www.yubico.com/support/security-advisories/ysa-2021-02ghsaWEB
- www.yubico.com/support/security-advisories/ysa-2021-02/mitrex_refsource_MISC
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