CVE-2019-20477

Katalog CVE

CVSS 9.8 · Critical EPSS 5,1%

Kerentanan Deserialization of Untrusted Data pada pyyaml, fedoraproject fedora. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

PyYAML 5.1 through 5.1.2 has insufficient restrictions on the load and load_all functions because of a class deserialization issue, e.g., Popen is a class in the subprocess module. NOTE: this issue exists because of an incomplete fix for CVE-2017-18342.

Rincian

Terbit di NVD

19 Februari 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

5,1% peluang dieksploitasi; lebih tinggi dari 92,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/yaml/pyyaml/blob/master/CHANGES release notes · advisory pihak ketiga
• https://www.exploit-db.com/download/47655 exploit · advisory pihak ketiga · vdb entry
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/33VBUY73AA6CT...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/52N5XS73Z5S4Z...