What is CVE-2021-3505?

CVE-2021-3505 is a medium-severity vulnerability in Libtpms_project Libtpms, classified under Insufficient Entropy. CVSS score: 5.5/10. Published 2021-04-19.

How severe is CVE-2021-3505?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Libtpms_project Libtpms

CVE-2021-3505

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(), whic…

EPSS: 0.004 (32.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Libtpms_project Libtpms
Fedoraproject Fedora — versions 33
Redhat Enterprise_linux — versions 8.0
N/a Libtpms — versions libtpms 0.8.0

Weakness classification (CWE)

CWE-331 — Insufficient Entropy

References

secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
secalert@redhat.com (Exploit, Patch, Third Party Advisory, x_refsource_MISC)
secalert@redhat.com (x_refsource_FEDORA, vendor-advisory)

Frequently asked questions

What is CVE-2021-3505?: CVE-2021-3505 is a medium-severity vulnerability in Libtpms_project Libtpms, classified under Insufficient Entropy. CVSS score: 5.5/10. Published 2021-04-19.
How severe is CVE-2021-3505?: Medium severity. CVSS v3 base score is 5.5 out of 10.