SUSE CVE-2021-28039

An issue was discovered in the Linux kernel 5.9.x through 5.11.3, as used with Xen. In some less-common configurations, an x86 PV guest OS user can crash a Dom0 or driver domain via a large amount of I/O activity. The issue relates to misuse of guest physical addresses when a configuration has...

SUSE CVE-2021-46744

An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time...

SUSE CVE-2022-0171

A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization SEV...

SUSE CVE-2022-1050

A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. This flaw allows a crafted guest driver to execute HW commands when shared buffers are not yet allocated, potentially leading to a use-after-free condition...

SUSE CVE-2022-2977

A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured this is not the default a local attacker can create a use-after-free and create a situation where it may be possible to escalate privileges on the syste...

SUSE 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...

SUSE CVE-2022-23035

Insufficient cleanup of passed-through device IRQs The management of IRQs associated with physical devices exposed to x86 HVM guests involves an iterative operation in particular when cleaning up after the guest's use of the device. In the case where an interrupt is not quiescent yet at the time...

SUSE CVE-2022-26359

IOMMU: RMRR VT-d and unity map AMD-Vi handling issues This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Certain PCI devices in a system might be assigned Reserved Memory Regions specified via Reserved Memory Region...

SUSE CVE-2022-26360

IOMMU: RMRR VT-d and unity map AMD-Vi handling issues This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Certain PCI devices in a system might be assigned Reserved Memory Regions specified via Reserved Memory Region...

SUSE CVE-2022-33747

Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g. removing pages from a guest's P2M Physical-to-Machine mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation to replace a...

SUSE CVE-2022-37394

An issue was discovered in OpenStack Nova before 23.2.2, 24.x before 24.1.2, and 25.x before 25.0.2. By creating a neutron port with the direct vnictype, creating an instance bound to that port, and then changing the vnictype of the bound port to macvtap, an authenticated user may cause the compu...

SUSE CVE-2022-39189

An issue was discovered the x86 KVM subsystem in the Linux kernel before 5.18.17. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVMVCPUPREEMPTED situations...

SUSE CVE-2022-45869

A race condition in the x86 KVM subsystem in the Linux kernel through 6.1-rc6 allows guest OS users to cause a denial of service host OS crash or host OS memory corruption when nested virtualisation and the TDP MMU are enabled...

Moderate: Red Hat Security Advisory: Red Hat Virtualization security and bug fix update

An update for ovirt-ansible-collection, ovirt-engine, and postgresql-jdbc is now available for Red Hat Virtualization 4 Tools for Red Hat Enterprise Linux 8, Red Hat Virtualization 4 for Red Hat Enterprise Linux 8, and Red Hat Virtualization Engine 4.4. Red Hat Product Security has rated this...

Cross-Thread Return Address Predictions

Bulletin ID: AMD-SB-1045 Potential Impact: Information Disclosure Summary AMD internally discovered a potential vulnerability where certain AMD processors may speculatively execute instructions at an incorrect return site after an SMT mode switch that may potentially lead to information disclosur...

The vulnerability of the KVM virtualization subsystem in Linux operating systems allows a hacker to trigger a service failure.

The vulnerability of the KVM virtualization subsystem in Linux operating systems is related to synchronization errors when using shared resources “Race Conditions”. Exploiting this vulnerability can allow an attacker to trigger a service failure...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2023-12116)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12116 advisory. - netfilter: nftpayload: incorrect arithmetics when fetching VLAN header bits Pablo Neira Ayuso Orabug: 34978152 CVE-2023-0179 Tenable has extract...

FormBook Malware Spreads via Malvertising Using MalVirt Loader to Evade Detection

An ongoing malvertising campaign is being used to distribute virtualized .NET loaders that are designed to deploy the FormBook information-stealing malware. "The loaders, dubbed MalVirt, use obfuscated virtualization for anti-analysis and evasion along with the Windows Process Explorer driver for...

FormBook Malware Spreads via Malvertising Using MalVirt Loader to Evade Detection

An ongoing malvertising campaign is being used to distribute virtualized .NET loaders that are designed to deploy the FormBook information-stealing malware. "The loaders, dubbed MalVirt, use obfuscated virtualization for anti-analysis and evasion along with the Windows Process Explorer driver for...

MalVirt: .NET Malware Loaders Spread through Malvertising Attacks

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary MalVirt is a cluster of virtualized .NET malware loaders are distributed through malvertising attacks that use obfuscated virtualization and the Windows Process Explorer driver to evade anti-analysis and...