CVE-2023-32731

Katalog CVE

CVSS 7.5 · High EPSS 0,50%

Kerentanan Expected Behavior Violation pada grpc. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in  https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005

Rincian

Terbit di NVD

9 Juni 2023

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-440: Expected Behavior Violation

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/grpc/grpc/pull/32309 patch
• https://github.com/grpc/grpc/pull/33005 patch