CVE-2021-24025

Katalog CVE

CVSS 9.8 · Critical EPSS 1,7%

Kerentanan Heap-based Buffer Overflow pada facebook hhvm. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Due to incorrect string size calculations inside the preg_quote function, a large input string passed to the function can trigger an integer overflow leading to a heap overflow. This issue affects HHVM versions prior to 4.56.3, all versions between 4.57.0 and 4.80.1, all versions between 4.81.0 and 4.93.1, and versions 4.94.0, 4.95.0, 4.96.0, 4.97.0, 4.98.0.

Rincian

Terbit di NVD

10 Maret 2021

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-122: Heap-based Buffer Overflow
CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 76,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/facebook/hhvm/commit/08193b7f0cd3910256e00d599f0f3eb2519c44ca patch · advisory pihak ketiga
• https://hhvm.com/blog/2021/02/25/security-update.html release notes · advisory pihak ketiga