{"id":"CVE-2020-16273","state":"PUBLISHED","title":"In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors","description":"In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors. An attacker can cause a change to the stack pointer used by the Secure World from a non-secure application if the stack is not initialized. This vulnerability affects only the software that is based on Armv8-M processors with the Security Extension.","publishedAt":"2020-11-12T18:53:45.000Z","updatedAt":"2024-08-04T13:37:54.222Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing"],"weaknesses":[],"ingestedAt":"2026-10-29T19:46:39.756Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2020/16xxx/CVE-2020-16273.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2020-16273","state":"PUBLISHED","datePublished":"2020-11-12T18:53:45.000Z","dateUpdated":"2024-08-04T13:37:54.222Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-08-03T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors. An attacker can cause a change to the stack pointer used by the Secure World from a non-secure application if the stack is not initialized. This vulnerability affects only the software that is based on Armv8-M processors with the Security Extension."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing","tags":["x_refsource_CONFIRM"]}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"shortName":"mitre","dateUpdated":"2020-11-12T18:53:45.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-16273","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":"In Arm software implementing the Armv8-M processors (all versions), the stack selection mechanism could be influenced by a stack-underflow attack in v8-M TrustZone based processors. An attacker can cause a change to the stack pointer used by the Secure World from a non-secure application if the stack is not initialized. This vulnerability affects only the software that is based on Armv8-M processors with the Security Extension."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing","refsource":"CONFIRM","url":"https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing"}]}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://developer.arm.com/support/arm-security-updates/armv8-m-stack-sealing","tags":["x_refsource_CONFIRM","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T13:37:54.222Z"}}]}}}