{"containers": {"cna": {"affected": [{"product": "EPYC\u2122 Processors", "vendor": "AMD", "versions": [{"status": "affected", "version": "various"}]}], "datePublic": "2022-05-10T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability."}], "problemTypes": [{"descriptions": [{"description": "tbd", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-05-11T16:21:04.000Z", "orgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "shortName": "AMD"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}], "source": {"advisory": "AMD-SB-1028", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@amd.com", "DATE_PUBLIC": "2022-05-10T20:00:00.000Z", "ID": "CVE-2021-26342", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "EPYC\u2122 Processors", "version": {"version_data": [{"version_affected": "=", "version_value": "various"}]}}]}, "vendor_name": "AMD"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "tbd"}]}]}, "references": {"reference_data": [{"name": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028", "refsource": "MISC", "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}]}, "source": {"advisory": "AMD-SB-1028", "discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T20:26:24.602Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}]}]}, "cveMetadata": {"assignerOrgId": "b58fc414-a1e4-4f92-9d70-1add41838648", "assignerShortName": "AMD", "cveId": "CVE-2021-26342", "datePublished": "2022-05-11T16:21:04.403Z", "dateReserved": "2021-01-29T00:00:00.000Z", "dateUpdated": "2024-09-16T16:32:42.078Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "B25C6225-69FF-4772-84F7-F560AAE3617E", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:*", "matchCriteriaId": "4F900BDD-F094-41A6-9A23-31F53DBA95D4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "E1DB1651-2E51-434E-810F-83428B648E7A", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:*", "matchCriteriaId": "2299ED50-B4D2-4BB3-AD87-56D552B84AE1", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "717EA494-B9B9-4092-811C-C51C6ECB4322", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:*", "matchCriteriaId": "4D698D3E-BB05-4C65-90F4-8DAE275CD6A4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F117E00-F3D5-4884-8A17-59D23837EC65", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:*", "matchCriteriaId": "A7DFCB62-6CDF-4AD2-9265-1887E5780CA5", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "C499DD69-BE4B-4E43-B19C-C17E79947C51", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:*", "matchCriteriaId": "98E1D79D-0CB0-4FD9-8A82-27CDFBFE07B2", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA967C73-8108-4F41-BFFD-81946C02EB24", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:*", "matchCriteriaId": "EBF0AFED-588A-4EFB-8C90-9280BC3A6720", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "95329A7D-ED5A-40AE-AF5E-B053236DBF77", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:*", "matchCriteriaId": "77A0A47B-74A1-4731-92A8-BC10FFE58ECF", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "0AD14E00-D597-4099-B4DF-58EE8EEE0B2E", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:*", "matchCriteriaId": "52544912-FAA3-4025-A5FD-151B21CEC53B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "D2F110B6-28BA-4A4C-8CF7-CB5BFD46D74F", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8264DF4-47B4-4716-AE89-44AFA870D385", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "D1C80207-0203-44EB-B8E4-DBDD53786CEB", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:*", "matchCriteriaId": "241E39FF-FE66-444C-A4C2-3D28C45341BE", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "84545E6A-E759-479C-93B7-65B172789853", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:*", "matchCriteriaId": "02D08121-DC57-47D7-8214-23A209F0AF08", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "B0F1D942-1D5B-4C27-AE38-DF68F37A08E5", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:*", "matchCriteriaId": "8E2B13CA-72F4-4CF6-9E12-62E6E9056A14", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "E6C66D2D-BFCB-430C-8A18-FC3C21D2BD40", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:*", "matchCriteriaId": "4C474537-3006-41BA-8C3D-5C370E3ACECD", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "D96D652C-BAC8-4975-BA8C-D4C0F707668F", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:*", "matchCriteriaId": "D1766FF1-77A9-4293-B826-F6A8FBD7AFBF", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "05E3DEC2-7F6B-4520-8A02-C12948E1C65F", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*", "matchCriteriaId": "678C5F58-8AE9-46FF-8F01-4CF394C87A2C", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB8E726E-ABB6-4A99-9834-CF16BA125598", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*", "matchCriteriaId": "71B9C24B-2C10-4826-A91B-E1C60665FBBE", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "20F6AA60-E573-4034-BDCF-5C558DFB4BF5", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*", "matchCriteriaId": "9000686A-DC2B-4561-9C32-E90890EB2EBA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "31595722-F102-447D-9BAE-9C36567342DD", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*", "matchCriteriaId": "B02B61B7-7DD3-4164-8D32-EB961E981BC9", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "35815993-4C33-4039-8CB4-C60A955980AE", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*", "matchCriteriaId": "7F98FF1A-3A2B-4CED-AEA2-9C4F2AC2D8C1", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "954923A7-7AAD-474E-919A-B17F11B01DA0", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7773x:-:*:*:*:*:*:*:*", "matchCriteriaId": "D02B1C69-BAA4-485B-BE22-46BE321F9E4E", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "EEB3E11E-F0DB-4A4E-BEED-7C24EEBF6271", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7473x:-:*:*:*:*:*:*:*", "matchCriteriaId": "D07E922F-C1AB-469C-A1C1-9F9E58332DFC", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "789DECC1-7334-4252-8801-EE1269687F87", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7573x:-:*:*:*:*:*:*:*", "matchCriteriaId": "237FB33B-BF08-4E3E-8E83-EB0AD2F12A4B", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "2786E500-3840-428E-8B2B-A7FBB636F41F", "versionEndExcluding": "milanpi-sp3_1.0.0.7", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7373x:-:*:*:*:*:*:*:*", "matchCriteriaId": "180B3002-B3C5-48B5-8322-5B64B237C5B9", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "5861CA96-35B4-4F01-96B9-0BB0DCBD2C6A", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7001:-:*:*:*:*:*:*:*", "matchCriteriaId": "6CAD2BB6-29B1-4CCA-A8A5-0FA9AB168803", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "8E9E309A-5B1A-42DF-9DF4-A7E464D98EF1", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*", "matchCriteriaId": "565383C4-F690-4E3B-8A6A-B7D4ACCFAA05", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "5375E1CE-84FE-4167-A6E8-951B2F7F13E6", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:*", "matchCriteriaId": "71ED05E6-8E69-41B9-9A36-CCE2D59A2603", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "ED50A3F0-346B-440E-968B-A74456DA9980", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*", "matchCriteriaId": "805B4FEA-CFB2-429C-818B-9277B6D546C3", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "1A681268-4C96-4386-9D85-C7D28EA2FA92", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*", "matchCriteriaId": "F65FC5B9-0803-4D7F-8EF6-7B6681418596", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "0E3FA966-6703-48F2-A284-637F25226B58", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*", "matchCriteriaId": "8A5FC951-9FAD-45B4-B7CF-D1A9482507F5", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "92402511-F88E-43A9-8CA6-9D90D8E52465", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*", "matchCriteriaId": "9BB78361-9AAD-44BD-8B30-65715FEA4C06", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "FC21EF29-AA65-4C2B-BB3F-01F0A7685953", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:*", "matchCriteriaId": "FA7576CB-A818-47A1-9A0D-6B8FD105FF08", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "29BF8ACD-4A20-42F6-B54D-AB5259DD18E4", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*", "matchCriteriaId": "C05F1EF0-3576-4D47-8704-36E9FAB1D432", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7401p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "435C46DD-B88A-455B-A20E-54E98886B350", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2E41A87-7A39-4BB2-88E4-16DF0D81BFD2", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "D9CE60DC-87A6-4640-B88A-1F0D52B0D226", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:*", "matchCriteriaId": "51C8CF00-8FC8-4206-9028-6F104699DE76", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "FA91C836-7E28-427D-9385-37E53397BB44", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:*", "matchCriteriaId": "4E8BAB73-6F45-49AB-8F00-49A488006F3E", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "7F611863-A9AC-42DF-AB51-1B5F75AC4159", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:*", "matchCriteriaId": "1AAB403A-5A36-4DC3-A187-99127CF77BA7", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "0AF18091-AFF3-43C4-954E-261295981807", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:*", "matchCriteriaId": "01BE5D42-1C62-4381-89E0-8F3264F696EC", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "35C8D8F4-C420-49C0-BACF-4EE7722890C2", "versionEndExcluding": "naplespi-sp3_1.0.0.h", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:*", "matchCriteriaId": "168076CD-1E6D-4328-AB59-4C1A90735AC4", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability."}, {"lang": "es", "value": "En las m\u00e1quinas virtuales invitadas de SEV, la CPU puede fallar al vaciar la memoria intermedia de traducci\u00f3n (TLB) despu\u00e9s de una secuencia particular de operaciones que incluye la creaci\u00f3n de un nuevo bloque de control de m\u00e1quina virtual (VMCB). El fallo en el vaciado del TLB puede causar que el microc\u00f3digo use traducciones del TLB obsoletas, lo que puede permitir una divulgaci\u00f3n del contenido de la memoria del hu\u00e9sped de SEV. Los usuarios de m\u00e1quinas virtuales invitadas SEV-ES/SEV-SNP no est\u00e1n afectados por esta vulnerabilidad"}], "id": "CVE-2021-26342", "lastModified": "2024-11-21T05:56:09.363", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-05-11T17:15:08.297", "references": [{"source": "psirt@amd.com", "tags": ["Vendor Advisory"], "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028"}], "sourceIdentifier": "psirt@amd.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}