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-2021-26324

A bug with the SEV-ES TMR may lead to a potential loss of memory integrity for SNP-active VMs...

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...

PT-2021-27031

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.7 Description The issue concerns the KVM MMU shadow nested paging, which lacks PKU. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel versions prior to...

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...

DEBIAN-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...

ALPINE-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-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...

Design/Logic Flaw

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...

UBUNTU-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-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-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-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-2020-15567

CVE-2020-15567 is described in connected documents as a Xen hypervisor vulnerability: non-atomic modification of a live EPT PTE during mapping of guest EPT tables could expose partially written PTEs and be race-exploitable. Affected software is the Xen hypervisor (versions up to 4.13.x per descri...