CVE-2021-46744

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...

CVE-2021-26342

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...

CVE-2021-26349

Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent MA...

CVE-2021-26342

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...

Design/Logic Flaw

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...

Design/Logic Flaw

Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent MA...

Code injection

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...

CVE-2021-46744

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...

CVE-2021-46744

Technical details about CVE-2021-46744 are not publicly provided in the supplied Connected documents. The initial entry mentions a SEV data-inference risk on AMD SEV guests, but no product/version/root-cause/fix is given here. Monitor for updates.

CVE-2021-26349

CVE-2021-26349 is listed as part of multiple SUSE kernel-firmware advisories (SUSE-SU-2022-1923-1 and related updates). The description indicates a vulnerability where failure to assign a new report ID to an imported guest could allow an SEV-SNP guest VM to be tricked into trusting a malicious Mi...

CVE-2021-26349

Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent MA...

CVE-2021-26342

CVE-2021-26342 is documented in the SUSE kernel-firmware advisories as part of a set of AMD/SEV-related fixes. The vulnerability description states that in SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) after a sequence including creation of a new VMCB, causing th...

CVE-2021-26342

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...

Ciphertext Side Channels on AMD SEV - Lenovo Support US

No description provided...

CVE-2021-26349

Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a dishonest Migration Agent MA...

CVE-2021-26332

Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability...

CVE-2021-26408

Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality...

CVE-2021-26408

Insufficient validation of elliptic curve points in SEV-legacy firmware may compromise SEV-legacy guest migration potentially resulting in loss of guest's integrity or confidentiality...

CVE-2021-26332

Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability...

CVE-2021-26324

A bug with the SEV-ES TMR may lead to a potential loss of memory integrity for SNP-active VMs...