libvirt: Insecure sVirt label generation

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...

Moderate: Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement 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 Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: KVM: double fetch in nested_svm_vmrun can lead to unrestricted MSR access

A flaw was found in the Linux kernel. A KVM guest on AMD can launch a nested guest without the Intercept VMRUN control bit by exploiting a TOCTOU vulnerability in nestedsvmvmrun. A malicious guest could use this flaw to gain unrestricted access to host MSRs, possibly leading to guest-to-host esca...

kernel: memory leak upon a kmalloc failure in kvm_io_bus_unregister_dev function in virt/kvm/kvm_main.c

A flaw was found in the KVM hypervisor of the Linux kernel. A memory leak could occur in kvmiobusunregisterdev upon a kmalloc failure. The highest threat from this vulnerability is to system availability...

SolarWinds Virtualization Manager <= 6.3.1 Privilege Escalation

The remote SolarWinds Virtualization Manager server is affected by a privilege escalation vulnerability. SolarWinds Virtualization Manager 6.3.1 and earlier allow local users to gain privileges by leveraging a misconfiguration of sudo, as demonstrated by sudo cat /etc/passwd. Note that Nessus has...

Moderate: Red Hat Security Advisory: virt:av and virt-devel:av security and bug fix update

An update for the virt:av and virt-devel:av modules is now available for Red Hat Enterprise Linux Advanced Virtualization 8.4. 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...

CentOS 8 : kernel (CESA-2021:4056)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4056 advisory. - kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free CVE-2020-36385 - kernel: out-of-bounds write due to a heap buffer overflo...

VulnCheck KEV: CVE-2016-3643

SolarWinds Virtualization Manager allows for privilege escalation through leveraging a misconfiguration of sudo...

SolarWinds Virtualization Manager Privilege Escalation Vulnerability

SolarWinds Virtualization Manager allows for privilege escalation through leveraging a misconfiguration of sudo...

Oracle Linux 8 : kernel (ELSA-2021-4056)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-4056 advisory. - RDMA/ucma: Rework ucmamigrateid to avoid races with destroy Kamal Heib 1982040 1931846 CVE-2020-36385 - RDMA/ucma: Fix locking for ctx-eventsreported...

PT-2021-23017

Name of the Vulnerable Software and Affected Versions KVM affected versions not specified Description A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State SEV-ES. A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host...

Moderate: Red Hat Security Advisory: OpenShift Virtualization 4.9.0 RPMs security and bug fix update

Red Hat OpenShift Virtualization release 4.9.0 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 4.9.0 Images security and bug fix update

Red Hat OpenShift Virtualization release 4.9.0 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...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

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 "virtext" field, this issue could allow a malicious...

Important: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt 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 available for each vulnerability from...

RLSA-2021:4088 Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free CVE-2020-36385 kernel: out-of-bounds write due to a heap buffe...

kernel-rt security and bug fix update

An update is available for kernel-rt. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel-rt packages provide the Real Time Linux Kernel, which enables...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

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 "virtext" field, this issue could allow a malicious...

kernel security, bug fix, and enhancement update

An update is available for kernel. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

RHEL 8 : kernel (RHSA-2021:4056)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4056 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use-after-free in...