cvelistv5 - CVE-2021-26342

CVE-2021-26342

Vulnerability from cvelistv5

Published
2022-05-11 16:21
Modified
2024-09-16 16:32
Severity ?
Summary
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.
References
▼	URL	Tags
	psirt@amd.com	https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028	Vendor Advisory
Impacted products
▼	Vendor	Product
	AMD	EPYC™ Processors
Show details on NVD website
JSON
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Advisory\"]}]}}"
  }
}
Sightings

Author	Source	Type	Date
Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Action not permitted

CVE-2021-26342

Vulnerability from cvelistv5

wid-sec-w-2022-0073

Vulnerability from csaf_certbund

gsd-2021-26342

Vulnerability from gsd

ghsa-wp53-p3r5-cq4w

Vulnerability from github

Tags

Sightings

Nomenclature
