{"id":"CVE-2021-27208","state":"PUBLISHED","title":"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 ","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.","publishedAt":"2021-03-15T12:27:26.000Z","updatedAt":"2024-08-03T20:40:47.492Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html","https://www.xilinx.com/support/answers/76201.html","http://www.onfi.org/specifications"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:15.637Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/27xxx/CVE-2021-27208.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-27208","state":"PUBLISHED","datePublished":"2021-03-15T12:27:26.000Z","dateUpdated":"2024-08-03T20:40:47.492Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2021-02-12T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html","tags":["x_refsource_MISC"]},{"url":"https://www.xilinx.com/support/answers/76201.html","tags":["x_refsource_MISC"]},{"url":"http://www.onfi.org/specifications","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2021-03-24T15:47:07.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2021-27208","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html","refsource":"MISC","url":"https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html"},{"name":"https://www.xilinx.com/support/answers/76201.html","refsource":"MISC","url":"https://www.xilinx.com/support/answers/76201.html"},{"name":"http://www.onfi.org/specifications","refsource":"MISC","url":"http://www.onfi.org/specifications"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.xilinx.com/products/silicon-devices/soc/zynq-7000.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.xilinx.com/support/answers/76201.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.onfi.org/specifications","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T20:40:47.492Z"}}]}}}