USN-6132-1 linux-aws-5.4, linux-bluefield vulnerabilities

Patryk Sondej and Piotr Krysiuk discovered that a race condition existed in the netfilter subsystem of the Linux kernel when processing batch requests, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrar...

SUSE CVE-2009-3640

The updatecr8intercept function in arch/x86/kvm/x86.c in the KVM subsystem in the Linux kernel before 2.6.32-rc1 does not properly handle the absence of an Advanced Programmable Interrupt Controller APIC, which allows local users to cause a denial of service NULL pointer dereference and system...

SUSE CVE-2015-5307

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service host OS panic or hang by triggering many AC aka Alignment Check exceptions, related to svm.c and vmx.c...

USN-5727-1 linux, linux-aws, linux-aws-hwe, linux-dell300x, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service system crash. CVE-2022-20422 It was discovered that the KVM implementation in the Linux kernel did not properly handl...

CVE-2022-3344

A flaw was found in the KVM's AMD nested virtualization SVM. A malicious L1 guest could purposely fail to intercept the shutdown of a cooperative nested guest L2, possibly leading to a page fault and kernel panic in the host L0...

USN-5667-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-raspi vulnerabilities

Selim Enes Karaduman discovered that a race condition existed in the General notification queue implementation of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2022-188...

PT-2022-34328 · Linux · Kvm +1

Name of the Vulnerable Software and Affected Versions: KVM versions prior to v5.4.211 Description: The issue concerns the nVMX snapshot pre-VM-Enter BNDCFGS for the !nested run pending case. It was introduced in Linux Kernel version v4.19 and is fixed in version v5.4.211. The actual impact and...

PT-2022-33638 · Linux · Kvm

Name of the Vulnerable Software and Affected Versions: KVM versions prior to v5.19.2 Description: The issue concerns the KVM's nVMX snapshot pre-VM-Enter DEBUGCTL for the !nested run pending case. The actual impact and attack plausibility have not yet been proven. Recommendations: For versions...

CVE-2022-1263

A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. 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...

GHSA-99RX-9X8V-9J8P OpenStack Nova Live migration can leak root disk into ephemeral storage

The icreateimagesandbacking aka createimagesandbacking method in libvirt driver in OpenStack Compute Nova Grizzly, Havana, and Icehouse, when using KVM live block migration, does not properly create all expected files, which allows attackers to obtain snapshot root disk contents of other users vi...

SUSE-SU-2022:1629-1 Security update for the Linux Kernel (Live Patch 25 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-24107 fixes one issue. The following security issue was fixed: - - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address bsc1198133...

SUSE-SU-2022:1569-1 Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-1503005946 fixes several issues. The following security issues were fixed: - - CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address bsc1198133 - CVE-2022-0330: A random memory access flaw was found in the Linux kernel's GPU i91...

CVE-2021-4093

A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State SEV-ES. A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction for example, outs or ins using the exit...

USN-5116-1 linux, linux-bluefield, linux-gcp-5.4, linux-hwe-5.4, linux-kvm vulnerabilities

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information WiFi network traffic. CVE-2020-3702 Alois Wohlschlager discovered that the overlay file system in the Linux kernel did not...

kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

USN-5071-2 linux-hwe-5.4 vulnerabilities

USN-5071-1 fixed vulnerabilities in the Linux kernel for Ubuntu 20.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 20.04 LTS for Ubuntu 18.04 LTS. Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for...

Unbreakable Enterprise kernel-container security update

5.4.17-2102.205.7.2.el7 - btrfs: fix race between marking inode needs to be logged and log syncing Filipe Manana Orabug: 33349276 5.4.17-2102.205.7.1 - RDMA/cma: Revert INIT-INIT patch Mike Marciniszyn Orabug: 33306518 5.4.17-2102.205.7 - rds: ib: Set SENDSIGNALED on the last WR posted Hakon Bugg...

PT-2021-7295 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.15 rc7 Description: The issue is related to incomplete cleanup of temporary or auxiliary resources in the arch/x86/kvm/lapic.c component of the Kernel-based Virtual Machine KVM subsystem in the Linux kernel...

DEBIAN-CVE-2021-29657

arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests, aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in...