CVE-2021-44850

Katalog CVE

CVSS 6.8 · Medium EPSS 0,19%

Kerentanan Insufficient Verification of Data Authenticity pada amd xilinx z-7012s firmware, amd xilinx z-7014s firmware +8 lainnya. Skor CVSS 3.1 6.8 (Medium) menurut NVD.

Deskripsi (NVD)

On Xilinx Zynq-7000 SoC devices, physical modification of an SD boot image allows for a buffer overflow attack in the ROM. Because the Zynq-7000's boot image header is unencrypted and unauthenticated before use, an attacker can modify the boot header stored on an SD card so that a secure image appears to be unencrypted, and they will be able to modify the full range of register initialization values. Normally, these registers will be restricted when booting securely. Of importance to this attack are two registers that control the SD card's transfer type and transfer size. These registers could be modified a way that causes a buffer overflow in the ROM.

Rincian

Terbit di NVD

10 Februari 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-345: Insufficient Verification of Data Authenticity

EPSS (30 hari)

0,19% peluang dieksploitasi; lebih tinggi dari 7,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://support.xilinx.com/s/article/47915 advisory vendor
• https://support.xilinx.com/s/article/76964 advisory vendor