CVE-2021-3505

Katalog CVE

CVSS 5.5 · Medium EPSS 0,40%

Kerentanan Insufficient Entropy pada libtpms project libtpms, redhat enterprise linux +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

19 April 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-331: Insufficient Entropy

EPSS (30 hari)

0,40% peluang dieksploitasi; lebih tinggi dari 32,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.redhat.com/show_bug.cgi?id=1950046 issue tracking · patch · advisory pihak ketiga
• https://github.com/stefanberger/libtpms/issues/183 exploit · patch · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NUCZX4S53TUNT...