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CVE-2021-3505

PoC —
CVSS 3.1
5.5 medium
EPSS
<1%p34
Published
()
Modified
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.

Vendors
libtpms projectredhatfedoraproject
Products
libtpms, enterprise linux, fedora
Weakness
CWE-331
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD CVE.org GitHub PoCs EPSS (0.4%)

In the news

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