igvm

igvm This project is the home of the Independent Guest Virtual Machine IGVM file format. The format specification can be found in the igvmdefs crate, with a Rust implementation of the binary format in the igvm crate. The IGVM file format is designed to encapsulate all information required to laun...

cve-2023-20573-poc

PoC Usage This repo contains a VMM that boots an SEV-SNP guest with a custom kernel. The VMM and kernel are a stripped-down version of a project of mine. A modified Linux kernel is required to run on the host: https://github.com/Freax13/linux/tree/for-amd. The Proof of Concept can be run like thi...

cve-2023-31346-poc

Firmware Memory Leak The code here aims to demonstrate the memory leaks in guest messages headers and the CPUID request guest message. Prerequisites Install rustup. Install a Linux kernel with SEV-SNP host support. I used a kernel with my a few of own patches...

cvmimage

Tinfoil Confidential VM Tinfoil CVM is a confidential virtual machine for secure inference and custom compute workloads on AMD SEV-SNP and Intel TDX. Every byte of the final image is explicitly declared and derived from pinned inputs, the hermetic build is byte-for-byte reproducible, and anyone c...

CVE-2026-98719

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem for AMD SEV Secure Encrypted Virtualization. This vulnerability occurs due to a double-free issue when memory allocated during virtual machine initialization is freed twice following an initialization failure. A loc...

CVE-2026-98718

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem supporting AMD SEV Secure Encrypted Virtualization. During virtual machine migration on the same host, CPU cache maintenance was performed after deactivating the source guest's encryption state instead of before. Th...

CVE-2026-98472

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine AMD SEV Secure Encrypted Virtualization implementation. This flaw allows a local user with permissions to manage virtual machines to cause a denial of service DoS through memory exhaustion. When an SEV guest is destroyed afte...

CVE-2026-98471

A flaw was found in the Linux kernel's KVM Kernel-based Virtual Machine subsystem for AMD SEV Secure Encrypted Virtualization. During intra-host migration of an encrypted virtual machine, the source virtual machine's CPU caches are not properly flushed before the system reclaims its memory. A loc...

CentOS Linux 8.5 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2023:1690294029)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2023:1690294029 advisory. - A vulnerability was found in the fs/inode.c:inodeinitowner function logic of the LInux kernel that allows local users to create...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel before version 6.9, a trusted-to-non-trusted hypervisor can inject Virtual Interrupt 29 VC at any point in time and can trigger its handler. This affects AMD SEV-SNP and AMD SEV-ES...

Enabling Extended SGX Enclaves Inside Confidential Virtual Machines

Confidential Virtual Machines CVMs, such as AMD SEV-SNP, and process enclaves, such as Intel SGX, provide workload protection against cloud threats. However, they strongly differ in TCB, deployment cost and speed, peer workload protection, resource sharing, fine-grained isolation and attestation,...

INTCC: A Framework for Interactive Confidential Computing

Confidential computing leverages Trusted Execution Environments TEEs to ensure the confidentiality and integrity of data in use. However, TEEs rely on remote attestation to guarantee the integrity of their initial memory state. This model is fundamentally at odds with interactive development...

CVE-2026-100839

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-100839

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

EUVD-2026-87849

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-100839 Contrast before 1.18.0 AML Injection Remote Code Execution

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-100839: Improper Control of Generation of Code

Contrast is a confidential-computing runtime for Kubernetes. In versions before 1.18.0, the guest kernel's ACPI/AML handling is vulnerable to an AML injection attack "BadAML". ACPI tables containing AML bytecode are passed from the untrusted host QEMU to the guest firmware OVMF and on to the Linu...

CVE-2026-92702 Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path

Cocos AI is a confidential computing system for running AI workloads inside trusted execution environments. In versions up to and including 0.8.2, the intra-handshake attested TLS aTLS AMD SEV-SNP verification path does not enforce attestation freshness when the expected reportData value is nil,...

CVE-2026-92702

Cocos AI is a confidential computing system for AI. In Cocos AI 0.8.2 and earlier, VerifyAttestationReportTLS in the AMD SEV-SNP verifier sets Policy.ReportData only when its caller supplies non-empty expected reportData. A relying-party integration that passes nil or empty expected reportData...

CVE-2026-92702 Cocos AI: Intra-handshake attested TLS implementation can accept Evidence with nil, empty, or omitted reportData in the AMD SEV-SNP path

Cocos AI is a confidential computing system for AI. In Cocos AI 0.8.2 and earlier, VerifyAttestationReportTLS in the AMD SEV-SNP verifier sets Policy.ReportData only when its caller supplies non-empty expected reportData. A relying-party integration that passes nil or empty expected reportData...