CVE-2021-27208

When booting a Zync-7000 SOC device from nand flash memory, the nand driver in the ROM does not validate the inputs when reading in any parameters in the nand’s parameter page. IF a field read in from the parameter page is too large, this causes a buffer overflow that could lead to arbitrary code execution. Physical access and modification of the board assembly on which the Zynq-7000 SoC device mounted is needed to replace the original NAND flash memory with a NAND flash emulation device for this attack to be successful.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:xilinx:zynq-7000s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:xilinx:zynq-7000s:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:xilinx:zynq-7000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:xilinx:zynq-7000:-:*:*:*:*:*:*:*

History

24 Mar 2021, 16:15

Type Values Removed Values Added
Summary When booting a Zync-7000 SOC device from nand flash memory, the nand driver in the ROM does not validate the inputs when reading in any parameters in the nand’s parameter page. IF a field read in from the parameter page is too large, this causes a buffer overflow that could lead to arbitrary code execution. Physical access and modification to the Zynq-7000 device is needed to replace the original nand flash memory with a nand flash emulator for this attack to be successful. When booting a Zync-7000 SOC device from nand flash memory, the nand driver in the ROM does not validate the inputs when reading in any parameters in the nand’s parameter page. IF a field read in from the parameter page is too large, this causes a buffer overflow that could lead to arbitrary code execution. Physical access and modification of the board assembly on which the Zynq-7000 SoC device mounted is needed to replace the original NAND flash memory with a NAND flash emulation device for this attack to be successful.

18 Mar 2021, 18:14

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : 4.6
v3 : 6.8
CWE CWE-120
CPE cpe:2.3:h:xilinx:zynq-7000s:-:*:*:*:*:*:*:*
cpe:2.3:o:xilinx:zynq-7000s_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:xilinx:zynq-7000_firmware:-:*:*:*:*:*:*:*
cpe:2.3:h:xilinx:zynq-7000:-:*:*:*:*:*:*:*
References (MISC) https://www.xilinx.com/support/answers/76201.html - (MISC) https://www.xilinx.com/support/answers/76201.html - Vendor Advisory
References (MISC) https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html - (MISC) https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html - Product, Vendor Advisory
References (MISC) http://www.onfi.org/specifications - (MISC) http://www.onfi.org/specifications - Not Applicable

15 Mar 2021, 15:15

Type Values Removed Values Added
References
  • {'url': 'https://www.xilinx.com/support.html', 'name': 'https://www.xilinx.com/support.html', 'tags': [], 'refsource': 'MISC'}
  • (MISC) https://www.xilinx.com/support/answers/76201.html -
  • (MISC) http://www.onfi.org/specifications -

15 Mar 2021, 13:15

Type Values Removed Values Added
New CVE

Information

Published : 2021-03-15 13:15

Updated : 2023-12-10 13:41


NVD link : CVE-2021-27208

Mitre link : CVE-2021-27208

CVE.ORG link : CVE-2021-27208


JSON object : View

Products Affected

xilinx

  • zynq-7000s
  • zynq-7000s_firmware
  • zynq-7000
  • zynq-7000_firmware
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')