Linux Distros Unpatched Vulnerability : CVE-2024-36331

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Improper initialization of CPU cache memory could allow a privileged attacker with hypervisor access to overwrite SEV-SNP guest memory resulting in loss of data...

Linux Distros Unpatched Vulnerability : CVE-2020-15567

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 ...

Linux Distros Unpatched Vulnerability : CVE-2021-34146

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The Bluetooth Classic implementation in the Cypress CYW920735Q60EVB does not properly handle the reception of continuous unsolicited LMP responses, allowing...

Linux Distros Unpatched Vulnerability : CVE-2020-15565

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in Xen through 4.13.x, allowing x86 Intel HVM guest OS users to cause a host OS denial of service or possibly gain privileges because of...

PT-2025-46738

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.0-rc7+ Description The Linux kernel contained a flaw related to memory mapping within KVM when running as a Secure Nested Paging SNP or Trusted Execution Technology TDX guest. Specifically, the legacy PCI...

PT-2025-49072

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw on nios2 systems where the memblock.current limit is not properly initialized when CONFIG FLATMEM is enabled. This can lead to max low pfn exceeding the...

CVE-2025-38560

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38560 x86/sev: Evict cache lines during SNP memory validation

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38560

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Evict cache lines during SNP memory validation An SNP cache coherency vulnerability requires a cache line eviction mitigation when validating memory after a page state change to private. The specific mitigation is to tou...

CVE-2025-38506

In the Linux kernel, the following vulnerability has been resolved: KVM: Allow CPU to reschedule while setting per-page memory attributes When running an SEV-SNP guest with a sufficiently large amount of memory 1TB+, the host can experience CPU soft lockups when running an operation in...

CVE-2025-38508

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Use TSCFACTOR for Secure TSC frequency calculation When using Secure TSC, the GUESTTSCFREQ MSR reports a frequency based on the nominal P0 frequency, which deviates slightly typically 0.2% from the actual mean TSC...

Linux Distros Unpatched Vulnerability : CVE-2022-42335

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - x86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging HAP is...

CVE-2025-38508

In the Linux kernel, the following vulnerability has been resolved: x86/sev: Use TSCFACTOR for Secure TSC frequency calculation When using Secure TSC, the GUESTTSCFREQ MSR reports a frequency based on the nominal P0 frequency, which deviates slightly typically 0.2% from the actual mean TSC...

CVE-2025-38506 KVM: Allow CPU to reschedule while setting per-page memory attributes

In the Linux kernel, the following vulnerability has been resolved: KVM: Allow CPU to reschedule while setting per-page memory attributes When running an SEV-SNP guest with a sufficiently large amount of memory 1TB+, the host can experience CPU soft lockups when running an operation in...

Linux Distros Unpatched Vulnerability : CVE-2022-1789

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - With shadow paging enabled, the INVPCID instruction results in a call to kvmmmuinvpcidgva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set...

Linux Distros Unpatched Vulnerability : CVE-2025-37794

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - wifi: mac80211: Purge vif txq in ieee80211dostop After ieee80211dostop SKB from vif's txq could still be processed. Indeed another concurrent vif...

AMD Server Vulnerabilities – August 2025

Summary Potential vulnerabilities in AMD EPYC™ Processor platforms that affect IOMMU, AMD Secure Encrypted Virtualization – Secure Nested Paging SEV-SNP and other platform components, were found during audits performed internally and by third parties. Mitigations have been provided in AMD EPYC™...

SEV Ciphertext Side Channel Attacks

Summary AMD has received reports from two research groups detailing methods by which a malicious hypervisor could potentially execute a side channel attack against a running secure encrypted virtualization – secure nested paging SEV-SNP guest. The first report, titled “Relocate + Vote: Exploiting...

Linux Distros Unpatched Vulnerability : CVE-2023-52613

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: drivers/thermal/loongson2thermal: Fix incorrect PTRERR judgment PTRERR returns -ENODEV when...

Linux Distros Unpatched Vulnerability : CVE-2021-47035

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: iommu/vt-d: Remove WO permissions on second-level paging entries When the first level page...