cvedb.io
CVE-2021-3505
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2021-04-19T21:15:13.270 · Last modified 2026-06-17T04:05:15.063

Summary

A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.

Affected products

libtpms_project — libtpms

Does this affect you?

Add your gear to cvedb and we'll alert you only when libtpms_project ships something exploited.

Check my exposure →

References

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