CVE-2021-27208: Buffer Overflow
First published: Mon Mar 15 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xilinx Zynq-7000s Firmware | ||
| Xilinx Zynq-7000s | ||
| Xilinx Zynq-7000 Firmware | ||
| Xilinx Zynq-7000 |
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