CVE-2021-27208

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Summary

CVECVE-2021-27208
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-15 13:15:00 UTC
Updated2021-03-30 12:52:00 UTC
DescriptionWhen 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.

Risk And Classification

Problem Types: CWE-120

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Xilinx Zynq-7000 - All All All
Hardware Xilinx Zynq-7000s - All All All
Operating System Xilinx Zynq-7000s Firmware - All All All
Operating System Xilinx Zynq-7000 Firmware - All All All

References

ReferenceSourceLinkTags
Specifications - ONFI MISC www.onfi.org Not Applicable
Zynq-7000 All Programmable SoC MISC www.xilinx.com Product, Vendor Advisory
AR# 76201: Design Advisory for Zynq-7000 SoC: Buffer Overflow in the BootROM NAND Driver MISC www.xilinx.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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