CVE-2020-1899

Katalog CVE

CVSS 7.5 · High EPSS 1,2%

Kerentanan Untrusted Pointer Dereference pada facebook hhvm. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. 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:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-822: Untrusted Pointer Dereference
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 67,8% 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/1107228a5128d3ca1c4add8ac1635d933cbbe2e9 patch · advisory pihak ketiga