Vulnerabilities > CVE-2021-3505

CVSS 5.5 - MEDIUM

Attack vector

LOCAL

Attack complexity

LOW

Privileges required

LOW

Confidentiality impact

HIGH

Integrity impact

NONE

Availability impact

NONE

local

low complexity

libtpms-project

redhat

fedoraproject

NVD

Published: 2021-04-19

Updated: 2024-11-21

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.

Vulnerable Configurations

Part	Description	Count
Application	Libtpms_Project Libtpms Project Libtpms - Libtpms Project Libtpms 0.5.2 Libtpms Project Libtpms 0.5.2.1 Libtpms Project Libtpms 0.6.0 Libtpms Project Libtpms 0.6.1 Libtpms Project Libtpms 0.6.2 Libtpms Project Libtpms 0.6.3 Libtpms Project Libtpms 0.6.4 Libtpms Project Libtpms 0.6.5 Libtpms Project Libtpms 0.7.0 Libtpms Project Libtpms 0.7.1 Libtpms Project Libtpms 0.7.2 Libtpms Project Libtpms 0.7.3 Libtpms Project Libtpms 0.7.4 Libtpms Project Libtpms 0.7.5 Libtpms Project Libtpms 0.7.6 Libtpms Project Libtpms 0.7.7 Libtpms Project Libtpms 0.7.8	18
OS	Redhat Redhat Enterprise Linux 8.0	1
OS	Fedoraproject Fedoraproject Fedora 33	1

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Summary

Vulnerable Configurations

References

Vulnerabilities > CVE-2021-3505