CVE-2020-36242

Katalog CVE

CVSS 9.1 · Critical EPSS 6,7%

Kerentanan Integer Overflow or Wraparound pada cryptography.io cryptography, fedoraproject fedora +1 lainnya. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

In the cryptography package before 3.3.2 for Python, certain sequences of update calls to symmetrically encrypt multi-GB values could result in an integer overflow and buffer overflow, as demonstrated by the Fernet class.

Rincian

Terbit di NVD

7 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound
CWE-787: Out-of-bounds Write

EPSS (30 hari)

6,7% peluang dieksploitasi; lebih tinggi dari 93,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/pyca/cryptography/compare/3.3.1...3.3.2 patch · advisory pihak ketiga
• https://github.com/pyca/cryptography/issues/5615 exploit · patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpuapr2022.html patch · advisory pihak ketiga
• https://www.oracle.com/security-alerts/cpujul2022.html patch · advisory pihak ketiga
• https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst release notes · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7RGQLK4J5ZQF...