CVE-2021-44850

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Summary

CVECVE-2021-44850
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-02-10 19:15:00 UTC
Updated2023-08-08 14:22:00 UTC
DescriptionOn 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.

Risk And Classification

Problem Types: CWE-345

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Amd Xilinx Z-7007s - All All All
Operating System Amd Xilinx Z-7007s Firmware - All All All
Hardware Amd Xilinx Z-7010 - All All All
Operating System Amd Xilinx Z-7010 Firmware - All All All
Hardware Amd Xilinx Z-7012s - All All All
Operating System Amd Xilinx Z-7012s Firmware - All All All
Hardware Amd Xilinx Z-7014s - All All All
Operating System Amd Xilinx Z-7014s Firmware - All All All
Hardware Amd Xilinx Z-7015 - All All All
Operating System Amd Xilinx Z-7015 Firmware - All All All
Hardware Amd Xilinx Z-7020 - All All All
Operating System Amd Xilinx Z-7020 Firmware - All All All
Hardware Amd Xilinx Z-7030 - All All All
Operating System Amd Xilinx Z-7030 Firmware - All All All
Hardware Amd Xilinx Z-7035 - All All All
Operating System Amd Xilinx Z-7035 Firmware - All All All
Hardware Amd Xilinx Z-7045 - All All All
Operating System Amd Xilinx Z-7045 Firmware - All All All
Hardware Amd Xilinx Z-7100 - All All All
Operating System Amd Xilinx Z-7100 Firmware - All All All

References

ReferenceSourceLinkTags
Xilinx Customer Community CONFIRM support.xilinx.com
Xilinx Customer Community CONFIRM support.xilinx.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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