Lucene search

K
cvelistRedhatCVELIST:CVE-2021-3505
HistoryApr 19, 2021 - 8:22 p.m.

CVE-2021-3505

2021-04-1920:22:05
CWE-331
redhat
www.cve.org
7
libtpms
tpm 2
key strength
bug
tcg
rsaadjustprimecandidate
data confidentiality

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

21.7%

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.

CNA Affected

[
  {
    "product": "libtpms",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "libtpms 0.8.0"
      }
    ]
  }
]

AI Score

5.6

Confidence

High

EPSS

0.001

Percentile

21.7%