LSN-0081-1: Kernel Live Patch Security Notice

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.CVE-2021-3653 Maxim...

Fedora: Security Advisory for libtpms (FEDORA-2021-b35192a79c)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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-5072-1: Linux kernel vulnerabilities

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory...

[SECURITY] Fedora 33 Update: libtpms-0.8.4-2.20210624gita594c4692a.fc33

A library providing TPM functionality for VMs. Targeted for integration into Qemu...

Fedora: Security Advisory for libtpms (FEDORA-2021-8d699b5267)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

[SECURITY] Fedora 34 Update: libtpms-0.8.4-2.20210624gita594c4692a.fc34.0

A library providing TPM functionality for VMs. Targeted for integration into Qemu...

Fedora: Security Advisory for libtpms (FEDORA-2021-abd13475ec)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

SUSE SLED15: libvirt / libvirt-admin / libvirt-bash-completion / libvirt-client / etc (SUSE-SU-2021:2471-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2021:2471-1 advisory. - CVE-2021-3631: fix SELinux label generation logic bsc1187871 Tenable has extracted the preceding description block directly from the SUSE...

Moderate: Red Hat Security Advisory: RHV Manager (ovirt-engine) security update [ovirt-4.4.7]

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...

Advisory ROSA-SA-2021-1808

Software: binutils 2.27 OS: Cobalt 7.9 CVE-ID: CVE-2017-12448 CVE-Crit: HIGH CVE-DESC: The bfdcacheclose function in bfd / cache.c in the Binary File Descriptor BFD library also known as libbfd distributed in GNU Binutils 2.29 and earlier allows remote attackers to invoke heap usage upon release...

CVE-2021-3631

A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality a...

Citrix Hypervisor 8.2 : xe-toolstack-restart causes the PVS VMs to go into PowerState Unknown.

PVS VMs may showPowerState Unknown inCitrix Studio when the toolstack is restarted on the XenServer Hypervisor hosting the VMs. Currently logged in sessions will be unaffected however any new user trying to log may encounter an error as the site is unable to determine if any VMs are powered on an...

Design/Logic Flaw

A credential leak vulnerability was found in Red Hat Satellite. This flaw exposes the compute resources credentials through VMs that are running on these resources in Satellite...

CVE-2020-14371

CVE-2020-14371 describes a credential-leak vulnerability in Red Hat Satellite that exposes compute resources credentials through virtual machines running on Satellite resources. The issue appears in the Satellite deployment context and is documented in both the NVD entry and Red Hat security refe...

CVE-2020-14371

A credential leak vulnerability was found in Red Hat Satellite. This flaw exposes the compute resources credentials through VMs that are running on these resources in Satellite...

Permissions bypass in KubeVirt

A flaw was found in the KubeVirt main virt-handler versions before 0.26.0 regarding the access permissions of virt-handler. An attacker with access to create VMs could attach any secret within their namespace, allowing them to read the contents of that secret...

Null pointer dereference

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system...

CVE-2021-3543

CVE-2021-3543 describes a local vulnerability in the Nitro Enclaves kernel driver where a null pointer dereference occurs in how Enclaves VMs force closures on the enclave file descriptor. A local attacker could use this flaw to crash the host system or escalate privileges. The provided documents...

RHEL 8 : RHV Manager security update (ovirt-engine) [ovirt-4.4.6] (Moderate) (RHSA-2021:2179)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:2179 advisory. The ovirt-engine package provides the manager for virtualization environments. This manager enables admins to define hosts and networks, as...

CVE-2020-1701

A flaw was found in the KubeVirt main virt-handler versions before 0.26.0 regarding the access permissions of virt-handler. An attacker with access to create VMs could attach any secret within their namespace, allowing them to read the contents of that secret...