igvm

igvm Este proyecto es el hogar del formato de archivo Independent Guest Virtual Machine IGVM. La especificación del formato se puede encontrar en la caja igvmdefs, con una implementación en Rust del formato binario en la caja igvm. El formato de archivo IGVM está diseñado para encapsular toda la...

cve-2023-31355-poc

Vulnerabilidad del Firmware SEV Este repositorio contiene un exploit para una vulnerabilidad en el firmware SEV. El exploit permite descifrar memoria arbitraria de un invitado SEV-SNP después de haber sido dado de baja. Probado en la versión 1.55.16 la más reciente al momento de escribir. Causa...

cve-2023-20573-poc

Uso del PoC Este repositorio contiene una VMM que arranca un invitado SEV-SNP con un kernel personalizado. La VMM y el kernel son una versión reducida de un proyecto mío. Se requiere un kernel de Linux modificado para ejecutarse en el host: https://github.com/Freax13/linux/tree/for-amd. La prueba...

POC_CVE-2025-29943_Write-what-where-Condition

StackWarp: PoC for CVE-2025-29943 Prueba de concepto para la vulnerabilidad de hardware StackWarp CVE-2025-29943 en procesadores AMD. Esta falla permite a un atacante con privilegios de administrador en un host hipervisor manipular la configuración de la canalización de la CPU para corromper el...

cve-2023-46813-poc

CVE-2023-46813 PoC 1. Apply the patches in the host-patches folder to the Linux host and QEMU. 2. Start an SEV-SNP VM. 3. Run the code in this repo and wait for the message "waiting for the hypervisor to change memory to MMIO". 4. Spam the attack command in QEMU several times. 5. Once the exploit...

CVE-2026-53360-POC

CVE-2026-53360: Desbordamiento de montón en PSC de KVM SEV-SNP Prueba de concepto de una lectura y escritura fuera de los límites del montón en el manejo del Cambio de Estado de Página PSC de SEV-SNP de KVM. Un invitado SEV-SNP malicioso hace que el kernel anfitrión recorra un array de entradas P...

cve-2023-31346-poc

Fuga de Memoria del Firmware El código aquí tiene como objetivo demostrar las fugas de memoria en los encabezados de mensajes de invitado y en el mensaje de invitado de solicitud de CPUID. Prerrequisitos Instalar rustup. Instalar un kernel de Linux con soporte de host SEV-SNP. Utilicé un kernel c...

cve-2024-21978-poc

Vulnerabilidad en el firmware SEV Este repositorio contiene un exploit para una vulnerabilidad en el firmware SEV. El exploit permite descifrar memoria arbitraria de un invitado SEV-SNP en ejecución. Probado en la versión 1.55.16 la más reciente en el momento de escribir esto. Causa raíz El campo...

CVE-2026-92702

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: 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,...

EUVD-2026-83192

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 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 ni...

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: Origin Validation Error

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,...

DEBIAN-CVE-2026-90040

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

CVE-2026-90040

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

EUVD-2026-80648

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Forcefully invalidate SNP VMSA if its backing gmem page is zapped Wire up a gmeminvalidaterange call for SNP VMs, and use it to force vCPUs to reload/recheck their guest-provided VMSA if the backing gmem page is being...

New DDRop Attack Breaks Intel TDX and AMD SEV-SNP Confidential Computing

Researchers have disclosed a new hardware attack, called DDRop , that breaks the memory protection in Intel and AMD confidential computing by silently dropping writes to a server's memory, so the processor keeps reading old encrypted data as if it were current. The attack requires an attacker who...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-80853

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Allocate full pages for DE,ENCRYPT ops on SNP-enabled hosts When de,encrypting...