Linux Distros Unpatched Vulnerability : CVE-2021-4093

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State SEV-ES. A KVM guest using SEV-ES can trigger...

Voltage Fault Injection on SEV Virtual Machines

Summary Researchers shared with AMD a report titled “Voltage Fault Injection on SEV-protected Virtual Machines.” The report noted a Voltage Fault Injection VFI attack targeting AMD EPYC™ 7272 CPUs running Secure Encrypted Virtualization SEV protected virtual machines VMs. Physical attacks such as...

Linux Distros Unpatched Vulnerability : CVE-2021-47228

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Ubuntu Linux - x86/ioremap: Map EFI-reserved memory as encrypted for SEV Some drivers require memory that is marked as EFI boot services data. In order for this...

DEBIAN-CVE-2025-38455

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Reject SEV-ES intra host migration if vCPU creation is in-flight Reject migration of SEV-ES state if either the source or destination VM is actively creating a vCPU, i.e. if kvmvmioctlcreatevcpu is in the section betwee...

UBUNTU-CVE-2025-38455

In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Reject SEV-ES intra host migration if vCPU creation is in-flight Reject migration of SEV-ES state if either the source or destination VM is actively creating a vCPU, i.e. if kvmvmioctlcreatevcpu is in the section betwee...

PT-2025-33551

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The Linux kernel contains a flaw related to Secure TSC frequency calculation in SEV-SNP VMs. The GUEST TSC FREQ MSR reports a frequency based on the nominal P0 frequency, which deviate...

UBUNTU-CVE-2022-50226

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEVFWBLOBMAXSIZE, but larger than the data that PSP firmware return...

[SECURITY] Fedora 41 Update: rust-sev-6.1.0-2.fc41

Library for AMD SEV...

[SECURITY] Fedora 42 Update: rust-sev-6.1.0-2.fc42

Library for AMD SEV...

The vulnerability of the Secure Encrypted Virtualization (SEV) technology of AMD’s microprogramming processor allows a hacker to gain unauthorized access to protected information.

The vulnerability of the Secure Encrypted Virtualization SEV technology of AMD microprocessors lies in the execution of operations outside the buffer in memory. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

Linux Distros Unpatched Vulnerability : CVE-2022-0171

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root host user-level application to crash the host kernel b...

Linux Distros Unpatched Vulnerability : CVE-2023-4155

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in KVM AMD Secure Encrypted Virtualization SEV in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a doubl...

CLSA-2025-1740470330 linux-firmware: Fix of 2 CVEs

Update AMD SEV CPU firmware to address CVE-2023-31356, CVE-2023-20584...

CLSA-2025-1739965377 linux-firmware: Fix of 2 CVEs

Update AMD SEV CPU firmware to address CVE-2023-31356, CVE-2023-20584...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Handle protected guests properly in completehypercallexit Use is64bithypercall instead of is64bitmode to detect a 64-bit hypercall when completing said hypercall. For guests with protected state, e.g., SEV-ES and SEV-SN...

AMD Server Processor 安全漏洞

AMD Server Processor is a processor product for the server market from UltraMicro Semiconductor AMD that is primarily used in data centers, cloud computing, and high-performance computing. A security vulnerability exists in AMD Server Processor that stems from the improper handling of invalid...

AMD Server Processor Vulnerabilities – February 2025

AMD ID: AMD-SB-3009 Potential Impact: Varies by CVE, see descriptions below Severity: Varies by CVE, see descriptions below Summary Potential vulnerabilities in the AMD Secure Processor ASP, AMD Secure Encrypted Virtualization SEV, AMD Secure Encrypted Virtualization – Secure Nested Paging SEV-SN...

[SECURITY] Fedora 41 Update: rust-sevctl-0.6.0-4.fc41

Administrative utility for AMD SEV...

UBUNTU-CVE-2024-56161

Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP...

Cache-based Side-Channel Attack Against SEV

AMD ID: AMD-SB-3010 Potential Impact: N/A Severity: N/A Summary AMD has received a report from researchers at National Taiwan University detailing cache-based side-channel attacks against Secure Encrypted Virtualization SEV. 2025-06-03 Update: A subsequent report of the same attacks was received...