CVE-2021-26311 (GCVE-0-2021-26311)
Vulnerability from cvelistv5 – Published: 2021-05-13 11:06 – Updated: 2024-09-17 04:25
VLAI?
Summary
In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.
Severity ?
No CVSS data available.
CWE
- Arbitrary Code Execution
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| AMD | SEV/SEV-ES |
Affected:
unspecified , < SEV-SNP
(custom)
|
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"id": "CVE-2021-26311",
"lastModified": "2024-11-21T05:56:04.090",
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servidor\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.2,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:C/I:C/A:C\",\"baseScore\":9.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":8.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-77\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7232p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16D55BEF-AFC8-45DC-9401-5DEF374E16C5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"565383C4-F690-4E3B-8A6A-B7D4ACCFAA05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7252:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B816918-6CCF-4010-AA16-7BF8A93AD7D1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"71ED05E6-8E69-41B9-9A36-CCE2D59A2603\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7262:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4FBBFDD3-A85D-43A3-AD67-D69E91C633B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7272:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8F187412-26C2-4D8C-9199-D7CCF49D6520\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"805B4FEA-CFB2-429C-818B-9277B6D546C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7282:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"26FC5683-F612-4586-8BA3-FB1F66D8868B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F98FF1A-3A2B-4CED-AEA2-9C4F2AC2D8C1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F65FC5B9-0803-4D7F-8EF6-7B6681418596\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7302:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0F7CB05E-C4F4-481F-AFB0-9288EBE6DB62\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7302p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8A2E0AC0-8BDE-49F8-B067-DB03037921DD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B02B61B7-7DD3-4164-8D32-EB961E981BC9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9000686A-DC2B-4561-9C32-E90890EB2EBA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"71B9C24B-2C10-4826-A91B-E1C60665FBBE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8A5FC951-9FAD-45B4-B7CF-D1A9482507F5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9BB78361-9AAD-44BD-8B30-65715FEA4C06\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7352:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A1540CCD-1ED8-4B4E-AD43-7DE2689D9A21\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA7576CB-A818-47A1-9A0D-6B8FD105FF08\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"678C5F58-8AE9-46FF-8F01-4CF394C87A2C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C05F1EF0-3576-4D47-8704-36E9FAB1D432\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A2E41A87-7A39-4BB2-88E4-16DF0D81BFD2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7402:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"430C9955-0090-4166-8E90-D81C2AA7DE0D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7402p:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"92EBDDBF-37C2-4D09-B744-F78169B2C1C3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D1766FF1-77A9-4293-B826-F6A8FBD7AFBF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4C474537-3006-41BA-8C3D-5C370E3ACECD\"},{\"vulnerable\":true,\"crit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Advisory\"]},{\"url\":\"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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