Exploit for Improper Input Validation in Amd Epyc_7203_Firmware

SEV Firmware Vulnerability This repo contains an exploit for...

NewStart CGSL MAIN 6.06 : kernel Multiple Vulnerabilities (NS-SA-2023-0083)

The remote NewStart CGSL host, running version MAIN 6.06, has kernel packages installed that are affected by multiple vulnerabilities: - There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions which may allow code...

[SECURITY] Fedora 38 Update: rust-sevctl-0.3.2-5.fc38

Administrative utility for AMD SEV...

[SECURITY] Fedora 39 Update: rust-snphost-0.1.2-2.fc39

Administrative utility for AMD SEV-SNP...

[SECURITY] Fedora 39 Update: rust-sevctl-0.4.3-2.fc39

Administrative utility for AMD SEV...

Fedora: Security Advisory for rust-snphost (FEDORA-2023-9790b327cb)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora: Security Advisory for rust-sevctl (FEDORA-2023-9790b327cb)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Fedora: Security Advisory for rust-sevctl (FEDORA-2023-6215ea423b)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6533-1: Linux kernel (OEM) vulnerabilities

Tom Dohrmann discovered that the Secure Encrypted Virtualization SEV implementation for AMD processors in the Linux kernel contained a race condition when accessing MMIO registers. A local attacker in a SEV guest VM could possibly use this to cause a denial of service system crash or possibly...

Important: kernel

Issue Overview: An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kern...

CacheWarp Attack: New Vulnerability in AMD SEV Exposes Encrypted VMs

A group of academics has disclosed a new "software fault attack" on AMD's Secure Encrypted Virtualization SEV technology that could be potentially exploited by threat actors to infiltrate encrypted virtual machines VMs and even perform privilege escalation. The attack has been codenamed CacheWarp...

kernel: virt/coco/sev-guest: Double-buffer messages

In the Linux kernel, the following vulnerability has been resolved: virt/coco/sev-guest: Double-buffer messages The encryption algorithms read and write directly to shared unencrypted memory, which may leak information as well as permit the host to tamper with the message integrity. Instead, copy...

AMD INVD Instruction Security Notice

Bulletin ID: AMD-SB-3005 Potential Impact: Memory integrity Severity: Medium Summary External researchers reported a potential vulnerability with the INVD instruction that may lead to a loss of SEV-ES and SEV-SNP guest virtual machine VM memory integrity. CVE Details Refer to Glossary for...

AMD Server Vulnerabilities – Nov 2023

Bulletin ID: AMD-SB-3002 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 System Management Unit SMU, AMD Secure Encrypted Virtualization SEV, AMD Secure Encrypted...

An issue was discovered in the Linux kernel before 6.5.9 exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.

...

CVE-2023-46813

A buffer overflow and null pointer dereference flaw was found in the Linux kernel's Secure Encrypted Virtualization SEV implementation for AMD functionality. This issue occurs when a user in SEV guest VM accesses MMIO registers, which could allow a local user to crash the system or escalate their...

SUSE CVE-2023-46813

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory and th...

AZL-31815 CVE-2023-46813 affecting package kernel for versions less than 5.15.137.1-1

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory and th...

UBUNTU-CVE-2023-46813

An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory and th...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an incorrect access check in the VC handler and an instruction emulation of SEV-ES emulation of MMIO access...