Description
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.
Published: 2021-04-19
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-26824 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.
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Subscriptions

Fedoraproject Fedora
Libtpms Project Libtpms
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T16:53:17.854Z

Reserved: 2021-04-16T00:00:00.000Z

Link: CVE-2021-3505

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-04-19T21:15:13.270

Modified: 2024-11-21T06:21:42.280

Link: CVE-2021-3505

cve-icon Redhat

Severity : Low

Publid Date: 2020-04-14T00:00:00Z

Links: CVE-2021-3505 - Bugzilla

cve-icon OpenCVE Enrichment

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Weaknesses