6.8

CVE-2021-44850

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.

Data is provided by the National Vulnerability Database (NVD)
Amd ≫ Xilinx Z-7012s Firmware Version-
   Amd ≫ Xilinx Z-7012s Version-
Amd ≫ Xilinx Z-7014s Firmware Version-
   Amd ≫ Xilinx Z-7014s Version-
Amd ≫ Xilinx Z-7010 Firmware Version-
   Amd ≫ Xilinx Z-7010 Version-
Amd ≫ Xilinx Z-7015 Firmware Version-
   Amd ≫ Xilinx Z-7015 Version-
Amd ≫ Xilinx Z-7020 Firmware Version-
   Amd ≫ Xilinx Z-7020 Version-
Amd ≫ Xilinx Z-7030 Firmware Version-
   Amd ≫ Xilinx Z-7030 Version-
Amd ≫ Xilinx Z-7035 Firmware Version-
   Amd ≫ Xilinx Z-7035 Version-
Amd ≫ Xilinx Z-7045 Firmware Version-
   Amd ≫ Xilinx Z-7045 Version-
Amd ≫ Xilinx Z-7100 Firmware Version-
   Amd ≫ Xilinx Z-7100 Version-
Amd ≫ Xilinx Z-7007s Firmware Version-
   Amd ≫ Xilinx Z-7007s Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.08% 0.235
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 6.8 0.9 5.9
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 4.6 3.9 6.4
AV:L/AC:L/Au:N/C:P/I:P/A:P
CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.