{"id":"CVE-2023-4020","state":"PUBLISHED","title":"Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory","description":"An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory.","publishedAt":"2023-12-15T20:37:20.123Z","updatedAt":"2024-09-26T14:11:59.084Z","severity":{"score":9,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","source":"Silabs"},"assigner":"Silabs","products":["silabs.com GSDK"],"affected":[{"vendor":"silabs.com","product":"GSDK","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThan":"4.4.0","versionType":"patch"}]}],"references":["https://github.com/SiliconLabs/gecko_sdk/releases","https://community.silabs.com/069Vm0000004b95IAA"],"weaknesses":["CWE-125","CWE-787"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/4xxx/CVE-2023-4020.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-4020","state":"PUBLISHED","datePublished":"2023-12-15T20:37:20.123Z","dateUpdated":"2024-09-26T14:11:59.084Z","assignerShortName":"Silabs","assignerOrgId":"030b2754-1501-44a4-bef8-48be86a33bf4","dateReserved":"2023-07-31T14:55:52.590Z"},"containers":{"cna":{"title":"Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory","descriptions":[{"lang":"en","value":"An unvalidated input in a library function responsible for communicating between secure and non-secure memory in Silicon Labs TrustZone implementation allows reading/writing of memory in the secure region of memory from the non-secure region of memory."}],"affected":[{"vendor":"silabs.com","product":"GSDK","defaultStatus":"unaffected","versions":[{"version":"1.0","status":"affected","lessThan":"4.4.0","versionType":"patch"}]}],"references":[{"url":"https://github.com/SiliconLabs/gecko_sdk/releases"},{"url":"https://community.silabs.com/069Vm0000004b95IAA"}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":9,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"Silabs","orgId":"030b2754-1501-44a4-bef8-48be86a33bf4","dateUpdated":"2024-09-26T14:11:59.084Z"},"impacts":[{"capecId":"CAPEC-129","descriptions":[{"lang":"en","value":"CAPEC-129 Pointer Manipulation"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.1.0-dev"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/SiliconLabs/gecko_sdk/releases","tags":["x_transferred"]},{"url":"https://community.silabs.com/069Vm0000004b95IAA","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T07:17:11.417Z"}}]}}}