CVE-2021-32714

Katalog CVE

CVSS 9.1 · Critical EPSS 1,2%

Kerentanan Integer Overflow or Wraparound pada hyper. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

hyper is an HTTP library for Rust. In versions prior to 0.14.10, hyper's HTTP server and client code had a flaw that could trigger an integer overflow when decoding chunk sizes that are too big. This allows possible data loss, or if combined with an upstream HTTP proxy that allows chunk sizes larger than hyper does, can result in "request smuggling" or "desync attacks." The vulnerability is patched in version 0.14.10. Two possible workarounds exist. One may reject requests manually that contain a `Transfer-Encoding` header or ensure any upstream proxy rejects `Transfer-Encoding` chunk sizes greater than what fits in 64-bit unsigned integers.

Rincian

Terbit di NVD

7 Juli 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:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

1,2% peluang dieksploitasi; lebih tinggi dari 66,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/hyperium/hyper/security/advisories/GHSA-5h46-h7hh-c6x9 exploit · advisory pihak ketiga