kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region

A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and...

kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region

A flaw was found in KVM. When updating a guest's page table entry, vmpgoff was improperly used as the offset to get the page's pfn. As vaddr and vmpgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and...

RHEL 8 : Red Hat Virtualization Host security update [ovirt-4.5.3-1] (Important) (RHSA-2022:8598)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2022:8598 advisory. The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host,...

PT-2022-6256 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 6.1-rc6 Description: A race condition in the x86 KVM subsystem allows guest OS users to cause a denial of service, resulting in a host OS crash or host OS memory corruption when nested virtualisation and the TDP...

Important: Red Hat Security Advisory: OpenShift Virtualization 4.9.7 Images security update

Red Hat OpenShift Virtualization release 4.9.7 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 Important. A Common Vulnerability Scoring System CVSS base score, which giv...

Important: Red Hat Security Advisory: Red Hat Virtualization Host security update [ovirt-4.5.3-1]

An update for redhat-release-virtualization-host, redhat-virtualization-host, and redhat-virtualization-host-productimg is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

USN-5727-2 linux-gcp, linux-gcp-4.15 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...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows low privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

Authentication Bypass

virtualbox is vulnerable to authentication bypass. The vulnerability exists in the Oracle VM VirtualBox product of Oracle Virtualization which allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox...

ovirt-engine: RHVM admin password is logged unfiltered when using otopi-style

A flaw was found in ovirt-engine, which leads to the logging of plaintext passwords in the log file when using otapi-style. This flaw allows an attacker with sufficient privileges to read the log file, leading to confidentiality loss...

Moderate: Red Hat Security Advisory: RHV Manager (ovirt-engine) [ovirt-4.5.3] bug fix and security update

Updated ovirt-engine packages that fix several bugs and add various enhancements are now available. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available f...

RHEL 8 : RHV Manager (ovirt-engine) [ovirt-4.5.3] (RHSA-2022:8502)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:8502 advisory. The ovirt-engine package provides the Red Hat Virtualization Manager, a centralized management platform that allows system administrators to...

Low: Red Hat Security Advisory: libvirt security, bug fix, and enhancement update

An update for libvirt is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE...

kernel: scsi: lpfc: Protect memory leak for NPIV ports sending PLOGI_RJT

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Protect memory leak for NPIV ports sending PLOGIRJT There is a potential memory leak in lpfcignoreelscmpl and lpfcelsrspreject that was allocated from NPIV PLOGIRJT lpfcrcvplogi's loginmbox. Check if...

kernel: KVM: x86/mmu: make apf token non-zero to fix bug

A hang vulnerability is possible in the Linux kernel in arch/x86/kvm/mmu/mmu.c. This issue may lead to compromised availability...

kernel: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Drop WARNs that assert a triple fault never "escapes" from L2 Remove WARNs that sanity check that KVM never lets a triple fault for L2 escape and incorrectly end up in L1. In normal operation, the sanity check is...