CVE-2023-20573 Debug Exception Delivery in Secure Nested Paging

A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information...

PT-2024-41505

Name of the Vulnerable Software and Affected Versions: linux in Debian Linux affected versions not specified Description: The vulnerability involves evicting cache lines during Secure Nested Paging SNP memory validation in x86 systems. This issue affects Debian Linux. Recommendations: At the...

CVE-2023-20566

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity...

CVE-2022-23830

SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity...

AMD EPYC Security Vulnerability

AMD EPYC is an x86 architecture server microprocessor product line from AMD, known as "Xiao Long" in Chinese, utilizing the Zen microarchitecture. A security vulnerability exists in AMD EPYC, which stems from a possible change in the SMM configuration when SNP is enabled, resulting in a loss of...

SUSE CVE-2020-15567

An issue was discovered in Xen through 4.13.x, allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification of a live EPT PTE. When mapping guest EPT nested paging tables, Xen would in some circumstances use a series of non-atomic bitfield write...

CVE-2021-26409

Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table RMP memory, potentially resulting in a loss of SNP Secure Nested Paging memory integrity...

CVE-2021-26409

Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table RMP memory, potentially resulting in a loss of SNP Secure Nested Paging memory integrity...

AMD Server Vulnerabilities – January 2023

Bulletin ID: AMD-SB-1032 Potential Impact: Varies by CVE, see descriptions below Severity: Varies by CVE, see descriptions below Summary During security reviews in collaboration with Google, Microsoft, and Oracle, potential vulnerabilities in the AMD Secure Processor ASP, AMD System Management Un...

The vulnerability of the SEV-SNP secure nested paging implementation for virtual machines running on AMD processor-based servers allows a attacker to disclose protected information by executing attacks through auxiliary channels.

The vulnerability of the SEV-SNP secure nested paging implementation for virtual machines running on AMD processor-based servers is related to data encryption errors. Exploiting this vulnerability can allow attackers to disclose sensitive information by launching attacks through secondary channel...

PT-2022-2472 · Amd +1 · Amd Cpus +1

Name of the Vulnerable Software and Affected Versions: AMD CPUs affected versions not specified Description: The issue is related to the implementation of the SEV-SNP Secure Nested Paging protective mechanism for virtual machines running on servers with AMD processors, which is associated with da...

Release of Technical Report into the AMD Security Processor

Posted by James Forshaw, Google Project Zero Today, members of Project Zero and the Google Cloud security team are releasing a technical report on a security review of AMD Secure Processor ASP. The ASP is an isolated ARM processor in AMD EPYC CPUs that adds a root of trust and controls secure...

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

PT-2022-8415 · Amd · Amd Epyc Processors

Name of the Vulnerable Software and Affected Versions: AMD EPYC Processors affected versions not specified Description: The issue is related to an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secur...

GSD-2021-1002563 KVM: MMU: shadow nested paging does not have PKU

KVM: MMU: shadow nested paging does not have PKU This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.7 by commit...

CVE-2021-26323

Failure to validate SEV Commands while SNP is active may result in a potential impact to memory integrity...

CVE-2021-38198

A flaw was found in the Linux kernel, where it incorrectly computes the access permissions of a shadow page. This issue leads to a missing guest protection page fault. Mitigation Do not disable hardware-assisted paging also known as nested paging and Second Level Address Translation on your hosts...

SUSE SLES11 Security Update : xen (SUSE-SU-2020:14521-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14521-1 advisory. - Incomplete cleanup from specific special register read operations in some IntelR Processors may allow an authenticated user to potentially...

Xen Paging Tables Race Condition (XSA-328)

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an issue allowing Intel guest OS users to gain privileges or cause a denial of service because of non-atomic modification of a live EPT PTE. When mapping guest EPT nested paging tables, X...