{"api_version":"1","generated_at":"2026-04-23T03:26:30+00:00","cve":"CVE-2021-28690","urls":{"html":"https://cve.report/CVE-2021-28690","api":"https://cve.report/api/cve/CVE-2021-28690.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-28690","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-28690"},"summary":{"title":"CVE-2021-28690","description":"x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend.","state":"PUBLIC","assigner":"security@xen.org","published_at":"2021-06-29 12:15:00","updated_at":"2021-09-21 16:13:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://security.gentoo.org/glsa/202107-30","name":"GLSA-202107-30","refsource":"GENTOO","tags":[],"title":"Xen: Multiple vulnerabilities (GLSA 202107-30) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://xenbits.xenproject.org/xsa/advisory-377.txt","name":"https://xenbits.xenproject.org/xsa/advisory-377.txt","refsource":"MISC","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2021-28690","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-28690","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"LEGACY","value":"Array","lang":""}],"nvd_cpes":[{"cve_year":"2021","cve_id":"28690","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28690","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"4.15.0","cpe7":"rc1","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2021","cve_id":"28690","vulnerable":"1","versionEndIncluding":"4.15.0","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2021-28690","qid":"178672","title":"Debian Security Update for xen (DSA 4931-1)"},{"cve":"CVE-2021-28690","qid":"179562","title":"Debian Security Update for xen (CVE-2021-28690)"},{"cve":"CVE-2021-28690","qid":"281644","title":"Fedora Security Update for xen (FEDORA-2021-993693c914)"},{"cve":"CVE-2021-28690","qid":"281645","title":"Fedora Security Update for xen (FEDORA-2021-41d4347447)"},{"cve":"CVE-2021-28690","qid":"390221","title":"Oracle Managed Virtualization (VM) Server for x86 Security Update for xen (OVMSA-2021-0020)"},{"cve":"CVE-2021-28690","qid":"390231","title":"Oracle Managed Virtualization (VM) Server for x86 Security Update for xen (OVMSA-2021-0020)"},{"cve":"CVE-2021-28690","qid":"500800","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2021-28690","qid":"501518","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2021-28690","qid":"501796","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2021-28690","qid":"504543","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2021-28690","qid":"710038","title":"Gentoo Linux Xen Multiple vulnerabilities (GLSA 202107-30)"},{"cve":"CVE-2021-28690","qid":"751074","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2925-1)"},{"cve":"CVE-2021-28690","qid":"751083","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2924-1)"},{"cve":"CVE-2021-28690","qid":"751085","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2943-1)"},{"cve":"CVE-2021-28690","qid":"751087","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2955-1)"},{"cve":"CVE-2021-28690","qid":"751100","title":"OpenSUSE Security Update for xen (openSUSE-SU-2021:2923-1)"},{"cve":"CVE-2021-28690","qid":"751103","title":"SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:2957-1)"},{"cve":"CVE-2021-28690","qid":"751111","title":"OpenSUSE Security Update for xen (openSUSE-SU-2021:1236-1)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@xen.org","ID":"CVE-2021-28690","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"xen","version":{"version_data":[{"version_affected":"?<","version_value":"4.12"},{"version_affected":">=","version_value":"4.13.x"},{"version_affected":"!>","version_value":"xen-unstable"}]}},{"product_name":"xen","version":{"version_data":[{"version_value":"4.12.x"}]}},{"product_name":"xen","version":{"version_data":[{"version_value":"4.11.x"}]}}]},"vendor_name":"Xen"}]}},"configuration":{"configuration_data":{"description":{"description_data":[{"lang":"eng","value":"See XSA-305 for details of susceptibility to TAA.\n\nOnly systems which are susceptible to TAA and have the XSA-305 fix are\nvulnerable.  Only systems which support S3 suspend/resume are vulnerable.\n\nThe vulnerability is only exposed if S3 suspend/resume is used."}]}}},"credit":{"credit_data":{"description":{"description_data":[{"lang":"eng","value":"This issue was discovered by Andrew Cooper of Citrix."}]}}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend."}]},"impact":{"impact_data":{"description":{"description_data":[{"lang":"eng","value":"After using S3 suspend at least once, CPU0 remains vulnerable to TAA.\n\nThis is an information leak.  For full details of the impact, see\nXSA-305."}]}}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"unknown"}]}]},"references":{"reference_data":[{"url":"https://xenbits.xenproject.org/xsa/advisory-377.txt","refsource":"MISC","name":"https://xenbits.xenproject.org/xsa/advisory-377.txt"},{"refsource":"GENTOO","name":"GLSA-202107-30","url":"https://security.gentoo.org/glsa/202107-30"}]},"workaround":{"workaround_data":{"description":{"description_data":[{"lang":"eng","value":"Not using S3 suspend/resume avoids the vulnerability."}]}}}},"nvd":{"publishedDate":"2021-06-29 12:15:00","lastModifiedDate":"2021-09-21 16:13:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:xen:xen:4.15.0:rc1:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndIncluding":"4.15.0","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"28690","Ordinal":"203866","Title":"CVE-2021-28690","CVE":"CVE-2021-28690","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"28690","Ordinal":"1","NoteData":"x86: TSX Async Abort protections not restored after S3 This issue relates to the TSX Async Abort speculative security vulnerability. Please see https://xenbits.xen.org/xsa/advisory-305.html for details. Mitigating TAA by disabling TSX (the default and preferred option) requires selecting a non-default setting in MSR_TSX_CTRL. This setting isn't restored after S3 suspend.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"28690","Ordinal":"2","NoteData":"2021-06-29","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"28690","Ordinal":"3","NoteData":"2021-07-12","Type":"Other","Title":"Modified"}]}}}