The vulnerability of the KVM virtualization subsystem in Linux operating systems allows a perpetrator to gain access to confidential data.

The vulnerability of the KVM virtualization subsystem in Linux operating systems is related to the simultaneous execution using shared resources with improper synchronization. Exploiting this vulnerability allows an attacker to gain access to confidential data...

Important: Red Hat Security Advisory: qemu-kvm-ma security update

An update for qemu-kvm-ma is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

Moderate: Red Hat Security Advisory: qemu-kvm security and enhancement update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. 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 for...

Updated kernel packages fix security vulnerability

This update is based on upstream 5.5.6 and fixes at least the following security vulnerability: A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervis...

MGASA-2020-0110 Updated kernel packages fix security vulnerability

This update is based on upstream 5.5.6 and fixes at least the following security vulnerability: A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervis...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5543)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5543 advisory. - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30944739 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5542)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5542 advisory. - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847137 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function...

CVE-2020-2732

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5540)

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5540 advisory. - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847136 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function...

CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

Unbreakable Enterprise kernel security update

4.14.35-1902.10.8 - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847136 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function Oliver Upton Orabug: 30847136 CVE-2020-2732 - KVM: nVMX: Dont emulate instructions in guest mode Paolo Bonzini Orabug:...

Unbreakable Enterprise kernel security update

4.1.12-124.36.4 - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30944739 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function Oliver Upton Orabug: 30944739 CVE-2020-2732 - KVM: nVMX: Don't emulate instructions in guest mode Paolo Bonzini Orabug:...

Unbreakable Enterprise kernel security update

4.1.12-124.36.1.1 - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847137 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function Oliver Upton Orabug: 30847137 CVE-2020-2732 - KVM: nVMX: Dont emulate instructions in guest mode Paolo Bonzini Orabug:...

RHEL 8 : virt:8.1 and virt-devel:8.1 (RHSA-2020:0555)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:0555 advisory. The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM hypervisor in environments managed by...

Moderate: Red Hat Security Advisory: virt:8.1 and virt-devel:8.1 security update

An update for the virt:8.1 and virt-devel:8.1 modules is now available for Advanced Virtualization for RHEL 8.1.0. 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,...

Updated kernel-linus packages fix security vulnerabilities

This update provides upstream 5.4.20, adding support for new hardware and features, and resolves at least the following security issues: In a Linux KVM guest that has PV TLB enabled, a process in the guest kernel may be able to read memory locations from another process in the same guest. This...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5535)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5535 advisory. - KVM: x86: fix out-of-bounds write in KVMGETEMULATEDCPUID CVE-2019-19332 Paolo Bonzini Orabug: 30658695 CVE-2019-19332 - rtlwifi: Fix potential...

Unbreakable Enterprise kernel security update

4.1.12-124.36.1 - iscsi-target: graceful disconnect on invalid mapping to iovec Imran Haider Orabug: 30459537 - x86/microcode: Issue update message only once Borislav Petkov Orabug: 30528904 - x86/microcode/intel: Issue the revision updated message only on the BSP Borislav Petkov Orabug: 30528904...

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5533)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-5533 advisory. - rtlwifi: Fix potential overflow on P2P code Laura Abbott Orabug: 30807747 CVE-2019-17666 - rds: fix an infoleak in rdsincinfocopy Kangjie Lu Orabug:...

Information Disclosure

Kernel is vulenrable to information disclosure. The vulnerability exists in KVM through exporting MSRIA32TSXCTRL to guest. This issue exists due to the an incomplete fix for TAA, CVE-2019-11135...