CVE-2023-20584

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity...

CVE-2023-20584

CVE-2023-20584 involves AMD IOMMU handling of certain address ranges with invalid DTEs. The issue can allow a local privileged attacker with a compromised Hypervisor to induce DTE faults and bypass SEV-SNP RMP checks, potentially compromising guest integrity. Connected advisories note affected ke...

CVE-2023-20584

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity...

CVE-2023-20584

IOMMU improperly handles certain special address ranges with invalid device table entries DTEs, which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity...

USN-6957-1: Linux kernel (Oracle) vulnerabilities

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to...

PT-2024-11957 · Iommu +9 · Iommu +9

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue concerns the improper handling of certain special address ranges with invalid device table entries DTEs by the IOMMU. This may allow an attack...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6956-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6956-1 advisory. Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC...

Ubuntu 20.04 LTS : Linux kernel (Oracle) vulnerabilities (USN-6957-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6957-1 advisory. Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and...

Ubuntu: Security Advisory (USN-6957-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2024 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...

AMD Server Vulnerabilities – August 2024

Bulletin ID: AMD-SB-3003 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 Secure Encrypted Virtualization SEV, AMD Secure Encrypted Virtualization – Secure Nested Paging...

Ubuntu 24.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6952-2)

"The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6952-2 advisory. Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and...

USN-6956-1: Linux kernel (Azure) vulnerabilities

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to...

USN-6952-1: Linux kernel vulnerabilities

Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to...

Ubuntu 24.04 LTS : Linux kernel vulnerabilities (USN-6952-1)

"The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6952-1 advisory. Benedict Schlter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious VC interrupts and...

CVE-2024-21978

Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption...

CVE-2024-21980

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity...

CVE-2023-31355

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest...

CVE-2024-21980

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity...

CVE-2024-21980

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity...

CVE-2024-21980

The CVE-2024-21980 issue is in AMD SNP firmware (SEV-SNP). The root cause is improper restriction of write operations in SNP firmware, which could allow a local malicious hypervisor to overwrite a guest VM’s memory or the UMC seed, leading to loss of confidentiality and integrity. Documents consi...