The vulnerability of the kvm_steal_time_set_preempted() function in the arch/x86/kvm/x86.c module of the Linux operating system allows a hacker to gain access to protected information.

The vulnerability of the kvmstealtimesetpreempted function in the arch/x86/kvm/x86.c module of the Linux operating system’s kernel is related to incorrect status messages for virtual processors. Exploiting this vulnerability could allow an attacker to gain access to protected information...

CVE-2023-30440

IBM PowerVM Hypervisor FW860.00 through FW860.B3, FW950.00 through FW950.70, FW1010.00 through FW1010.50, FW1020.00 through FW1020.30, and FW1030.00 through FW1030.10 could allow a local attacker with control a partition that has been assigned SRIOV virtual function VF to cause a denial of servic...

virt:ol and virt-devel:rhel security, bug fix, and enhancement update

hivex libguestfs 1.44.0-9.0.1 - Replace upstream references from description tag - Config supermin to use host yum.conf in ol8 Orabug: 29319324 - Set DISTROORACLELINUX correspeonding to ol 1:1.44.0-9 - Fix CVE-2022-2211 Denial of Service in --key parameter resolves: rhbz2101280 1:1.44.0-8 -...

MichaelKors Ransomware Targets Linux and VMware ESXi Systems with Hypervisor Jackpotting

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary MichaelKors ransomware, a new RaaS operation, has been targeting Linux and VMware ESXi systems since April 2023, utilizing the tactic of "hypervisor jackpotting" to gain unrestricted access and encrypt...

The vulnerability of the Core component of the Oracle VM VirtualBox software allows a hacker to execute arbitrary code.

The vulnerability of the Core component of the Oracle VM VirtualBox virtualization software relates to reading data beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to execute arbitrary code...

Fedora: Security Advisory for libkrun (FEDORA-2023-37ae269843)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6090-1 linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-oracle-5.15 vulnerabilities

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. CVE-2022-27672 Zheng Wang discovered that the Intel i915 graphics...

Moderate: Red Hat Security Advisory: OpenShift Virtualization 4.13.0 Images security, bug fix, and enhancement update

Red Hat OpenShift Virtualization release 4.13.0 is now available with updates to packages and images that fix several bugs and add enhancements. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which giv...

[SECURITY] Fedora 37 Update: libkrun-1.5.0-2.fc37

Dynamic library providing Virtualization-based process isolation capabilities...

Moderate: Red Hat Security Advisory: OpenShift Virtualization 4.13.0 RPMs security and bug fix update

Red Hat OpenShift Virtualization release 4.13.0 is now available with updates to packages and images that fix several bugs and add enhancements. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which giv...

SUSE CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

UBUNTU-CVE-2022-42336

Mishandling of guest SSBD selection on AMD hardware The current logic to set SSBD on AMD Family 17h and Hygon Family 18h processors requires that the setting of SSBD is coordinated at a core level, as the setting is shared between threads. Logic was introduced to keep track of how many threads...

The vulnerability of the x86_emulate_insn function in the arch/x86/kvm/emulate.c component of the Linux operating system’s kernel allows a hacker to cause a service failure.

The vulnerability of the x86emulateinsn function in the arch/x86/kvm/emulate.c component of the Linux operating system’s kernel is related to pointer arithmetic errors. Exploiting this vulnerability allows an attacker to cause a service failure...

PT-2023-14106 · Suse · Suse

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned in the provided descriptions. Description: The issue concerns the mishandling of guest SSBD selection on AMD hardware, specifically AMD Family 17h and Hygon Family 18h processors. The current log...

QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion

An integer underflow issue was found in the QEMU built-in VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service...

kernel: KVM: NULL pointer dereference in kvm_mmu_invpcid_gva

A flaw was found in KVM. With shadow paging enabled if INVPCID is executed with CR0.PG=0, the invlpg callback is not set, and the result is a NULL pointer dereference. This flaw allows a guest user to cause a kernel oops condition on the host, resulting in a denial of service...

kernel: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Use kzalloc for sev ioctl interfaces to prevent kernel memory leak For some sev ioctl interfaces, input may be passed that is less than or equal to SEVFWBLOBMAXSIZE, but larger than the data that PSP firmware return...

kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks

A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...

kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks

A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...

EulerOS Virtualization 2.10.1 : libX11 (EulerOS-SA-2023-1892)

According to the versions of the libX11 package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further...