cvedb.io
CVE-2021-3446
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2021-03-25T19:15:14.703 · Last modified 2026-06-17T04:05:06.950

Summary

A flaw was found in libtpms in versions before 0.8.2. The commonly used integration of libtpms with OpenSSL contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality.

Affected products

libtpms_project — libtpms

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.