UBUNTU-CVE-2021-46977

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. If the MSR holds a different value per logical CPU, the WRMSR could corrupt the host's value if KVM is...

CVE-2021-46977 KVM: VMX: Disable preemption when probing user return MSRs

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Disable preemption when probing user return MSRs Disable preemption when probing a user return MSR via RDSMR/WRMSR. If the MSR holds a different value per logical CPU, the WRMSR could corrupt the host's value if KVM is...

containerd allows RAPL to be accessible to a container

/sys/devices/virtual/powercap accessible by default to containers Intel's RAPL Running Average Power Limit feature, introduced by the Sandy Bridge microarchitecture, provides software insights into hardware energy consumption. To facilitate this, Intel introduced the powercap framework in Linux...

USN-6497-1: Linux kernel (OEM) vulnerabilities

Maxim Levitsky discovered that the KVM nested virtualization SVM implementation for AMD processors in the Linux kernel did not properly handle x2AVIC MSRs. An attacker in a guest VM could use this to cause a denial of service host kernel crash. CVE-2023-5090 Alon Zahavi discovered that the...

CVE-2023-5090

A flaw was found in KVM. An improper check in svmsetx2apicmsrinterception may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition...

Race condition

A flaw was found in KVM. An improper check in svmsetx2apicmsrinterception may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition...

CVE-2023-5090

CVE-2023-5090: A flaw in Linux kernel KVM (svm_set_x2apic_msr_interception) enables direct access to host x2apic MSRs when a guest resets its APIC, potentially causing denial of service. Connected advisories (Astra Linux, IBM Guardium bulletin, Amazon ALAS) reference this CVE as part of Linux ker...

CVE-2023-5090 Kernel: kvm: svm: improper check in svm_set_x2apic_msr_interception allows direct access to host x2apic msrs

A flaw was found in KVM. An improper check in svmsetx2apicmsrinterception may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition...

CVE-2023-5090: Improper Handling of Exceptional Conditions

A flaw was found in KVM. An improper check in svmsetx2apicmsrinterception may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition...

RHEL 8 : kernel-rt (RHSA-2023:5794)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5794 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Telecommunications Update Service, and Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as...

RHEL 8 : kernel (RHSA-2023:5628)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5628 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: net/sched: clsu32 component...

PT-2023-6555

Name of the Vulnerable Software and Affected Versions KVM affected versions not specified Description A flaw was found in KVM, related to an improper check in the svm set x2apic msr interception function. This may allow direct access to host x2apic msrs when the guest resets its apic, potentially...

kernel security, bug fix, and enhancement update

5.14.0-284.30.0.12.OL9 - x86/tsx: Add a feature bit for TSX control MSR support CVE-2023-1637 - x86/speculation: Restore speculation related MSRs CVE-2023-1637 - x86/pm: Save the MSR validity status at context setup CVE-2023-1637 - x86/pm: Fix false positive kmemleak report in msrbuildcontext...

RHEL 9 : kernel (RHSA-2023:5069)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:5069 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. The following packages have been upgraded to a later...

Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: UAF in nftables when nftsetlookupglobal triggered after handling named and anonymous sets in batch requests CVE-2023-3390 kernel:...

Platbox - UEFI And SMM Assessment Tool

UEFI and SMM Assessment Tool Features Platbox is a tool that helps assessing the security of the platform: Dumps the platform registers that are interesting security-wise Flash Locks MMIO and Remapping Locks SMM Base and Locks MSRs RW access to the PCI configuration space of devices. RW to physic...

CVE-2022-42455

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...

Design/Logic Flaw

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...

CVE-2022-42455: Improper Privilege Management

ASUS EC Tool driver aka d.sys 1beb15c90dcf7a5234ed077833a0a3e900969b60be1d04fcebce0a9f8994bdbb, as signed by ASUS and shipped with multiple ASUS software products, contains multiple IOCTL handlers that provide raw read and write access to port I/O and MSRs via unprivileged IOCTL calls. Local user...