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Unknown
CVE-2021-46744
Disclosure Date: May 10, 2022 (last updated October 07, 2023)
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
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Attacker Value
Unknown
CVE-2021-26340
Disclosure Date: December 06, 2021 (last updated October 07, 2023)
A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).
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Attacker Value
Unknown
CVE-2020-12966
Disclosure Date: August 10, 2021 (last updated October 07, 2023)
AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to leaking guest data by the malicious hypervisor.
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