Researchers Detail Privilege Escalation Bugs Reported in Oracle VirtualBox

A now-patched vulnerability affecting Oracle VM VirtualBox could be potentially exploited by an adversary to compromise the hypervisor and cause a denial-of-service DoS condition. "Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced 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 for...

kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9564)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9564 advisory. - LTS tag: v5.4.142 Jack Vogel CVE-2021-3653 CVE-2021-3656 - KVM: nSVM: always intercept VMLOAD/VMSAVE when nested CVE-2021-3656 Maxim Levitsky -...

Xen 缓冲区错误漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports migration at runtime to ensure uptime and avoid downtime. A buffer error vulnerability exists in Xe...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9565)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9565 advisory. - LTS tag: v5.4.142 Jack Vogel CVE-2021-3653 CVE-2021-3656 - KVM: nSVM: always intercept VMLOAD/VMSAVE when nested CVE-2021-3656 Maxim Levitsky -...

Vulnerabilities fixed in Red Hat Virtualization

Vulnerabilities have been fixed in Red Hat Virtualization for Red Hat Enterprise Linux 8. The vulnerabilities allow a malicious person to able to perform attacks that result in the following categories of damage: Denial-of-Service DoS. Access to sensitive data Increased user privileges The...

ALPINE-CVE-2021-28710

certain VT-d IOMMUs may not work in shared page table mode For efficiency reasons, address translation control structures page tables may and, on suitable hardware, by default will be shared between CPUs, for second-level translation EPT, and IOMMUs. These page tables are presently set up to alwa...

CVE-2021-28710

certain VT-d IOMMUs may not work in shared page table mode For efficiency reasons, address translation control structures page tables may and, on suitable hardware, by default will be shared between CPUs, for second-level translation EPT, and IOMMUs. These page tables are presently set up to alwa...

CVE-2021-28710

CVE-2021-28710 affects the Xen hypervisor on x86 VT-d IOMMUs when sharing page tables. The bug arises because the top-level strip of the 3-level page tables was skipped while inserting the root page-table address into the hardware pagetable base register, allowing a guest to write to leaf page-ta...

RHEL 8 : Red Hat Virtualization Host security update [ovirt-4.4.9] 0-day (Important) (RHSA-2021:4750)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:4750 advisory. The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host,...

Important: Red Hat Security Advisory: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.9] 0-day

An update for redhat-release-virtualization-host and redhat-virtualization-host 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 Vulnerability Scoring System CVSS base...

Xen 权限许可和访问控制问题漏洞

Xen is an open source virtual machine monitor product from the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. Xen suffers from a permissions licensing and...

RHEL 8 : RHV Manager (ovirt-engine) security update [ovirt-4.4.9] (Moderate) (RHSA-2021:4626)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:4626 advisory. The ovirt-engine package provides the manager for virtualization environments. This manager enables admins to define hosts and networks, as...

RHEL 8 : RHV Engine and Host Common Packages security update [ovirt-4.4.9] (Important) (RHSA-2021:4703)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:4703 advisory. The ovirt-engine package provides the Red Hat Virtualization Manager, a centralized management platform that allows system administrators to view and...

Moderate: Red Hat Security Advisory: OpenShift Virtualization 2.6.8 Images security and bug fix update

Red Hat OpenShift Virtualization release 2.6.8 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 give...

Moderate: Red Hat Security Advisory: OpenShift Virtualization 2.6.8 RPMs security and bug fix update

Red Hat OpenShift Virtualization release 2.6.8 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 give...

EulerOS Virtualization 2.9.1 : sssd (EulerOS-SA-2021-2739)

According to the versions of the sssd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs- fetch and cache-expire...

EulerOS Virtualization 2.9.0 : qemu (EulerOS-SA-2021-2763)

According to the versions of the qemu packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - QEMU 4.2.0 has a use-after-free in hw/net/e1000ecore.c because a guest OS user can trigger an e1000e packet with the data's address...

EulerOS Virtualization 2.9.0 : httpd (EulerOS-SA-2021-2779)

According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in modauthdigest. There is...