CVE-2021-27208 | BDVDB-2026-150479 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12021-03-15Record published in the CVE List.
2. Version 22024-08-03Most recent update recorded in the CVE List.