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CVE-2021-3505
Published: Apr 19, 2021
Modified: Aug 3, 2024
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | libtpms | affected libtpms 0.8.0 |
Weaknesses (CWE)
References
https://bugzilla.redhat.com/show_bug.cgi?id=1950046
x_refsource_MISC
https://github.com/stefanberger/libtpms/issues/183
x_refsource_MISC
FEDORA-2021-cfdc434610
vendor-advisory
x_refsource_FEDORA
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