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...

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...

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

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...

VulnCheck KEV: CVE-2019-16098

The driver in Micro-Star MSI Afterburner 4.6.2.15658 aka RTCore64.sys and RTCore32.sys allows any authenticated user to read and write to arbitrary memory, I/O ports, and MSRs. This can be exploited for privilege escalation, code execution under high privileges, and information disclosure...

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls causing a kernel oops condition that results in a denial of service.

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CVE-2022-2153

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2022-9709)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9709 advisory. - netsched: clsroute: remove from list when handle is 0 Thadeu Lima de Souza Cascardo Orabug: 34480880 CVE-2022-2588 - arm64: proton-pack: provide...

GSD-2022-1002482 KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs

KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs 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 v4.9.311 by commit...