Oracle VM VirtualBox (Apr 2020 CPU)

The version of Oracle VM VirtualBox running on the remote host is 5.2.x prior to 5.2.40, 6.0.x prior to 6.0.20 or 6.1.x prior to 6.1.6. It is, therefore, affected by multiple vulnerabilities as noted in the April 2019 Critical Patch Update advisory. Note that Nessus has not tested for this issue...

Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135)

A flaw was found in the fix for CVE-2019-11135, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort TAA error occurs. When a guest is running on a host CPU affected by the TAA flaw TAANO=0, but is not affected by the MDS issue MDSNO=1, the guest was to...

DEBIAN-CVE-2020-11743

An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service because of a bad error path in GNTTABOPmapgrant. Grant table operations are expected to return 0 for success, and a negative number for errors. Some misplaced brackets cause one error path to retur...

Update for RDC 7.1 to support restricted administration logons on Windows 7 and Windows Server 2008 R2

Update for RDC 7.1 to support restricted administration logons on Windows 7 and Windows Server 2008 R2 About this update This Remote Desktop Protocol RDP 7.1 update enables the Remote Desktop Connection client to perform restricted administration logons. It also enables the Remote Desktop Service...

Linux kernel information disclosure vulnerability (CNVD-2020-22207)

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. An information disclosure vulnerability exists in the Linux kernel that stems from the KVM not fully implementing the ''vmxcheckintercept'' function. An attacker can...

DEBIAN-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...

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...

Design/Logic Flaw

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...

CVE-2020-2732

CVE-2020-2732 is a Linux kernel vulnerability affecting KVM nested virtualization. The issue arises in how the KVM implementation handles instruction emulation for L2 guests when nested virtualization is enabled, potentially allowing an L2 guest to cause privilege escalation, denial of service, o...

qemu security update

CentOS Errata and Security Advisory CESA-2020:1116 An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. 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 severit...

libosinfo security update

CentOS Errata and Security Advisory CESA-2020:1051 An update for libosinfo is now available for Red Hat Enterprise Linux 7. 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...

Important: Red Hat Security Advisory: qemu-kvm security and bug fix update

An update for qemu-kvm is now available for Red Hat Enterprise Linux 6. 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 for each vulnerability from...

Linux kernel KVM Competitive Conditions Issue Vulnerability

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the KVM's of the Linux kernel for PowerPC processors, which stems from the program's failure to properly separate the state of the...

Important: Red Hat Security Advisory: virt:rhel security and bug fix update

An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8. 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...

Important: virt:rhel security and bug fix update

Kernel-based Virtual Machine KVM offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the...

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

An update for qemu-kvm-ma is now available for Red Hat Enterprise Linux 7.7 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...

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

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.7 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 fo...

QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

A heap buffer overflow issue was found in the SLiRP networking implementation of the QEMU emulator. This flaw occurs in the tcpemu routine while emulating IRC and other protocols. An attacker could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential...

Important: Red Hat Security Advisory: virt:rhel security update

An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. 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 ...

USN-4318-1 linux, linux-hwe vulnerabilities

Al Viro discovered that the vfs layer in the Linux kernel contained a use- after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly expose sensitive information kernel memory. CVE-2020-8428 Gustavo Romero and Paul Mackerras discovered that th...