CVE-2020-1898

Katalog CVE

CVSS 7.5 · High EPSS 1,2%

Kerentanan Uncontrolled Recursion pada facebook hhvm. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

The fb_unserialize function did not impose a depth limit for nested deserialization. That meant a maliciously constructed string could cause deserialization to recurse, leading to stack exhaustion. This issue affected HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

Rincian

Terbit di NVD

11 Maret 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-674: Uncontrolled Recursion

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 67,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://hhvm.com/blog/2020/06/30/security-update.html advisory vendor
• https://github.com/facebook/hhvm/commit/1746dfb11fc0048366f34669e74318b8278a684c patch · advisory pihak ketiga