CVE-2020-36313

A flaw was found in the Linux kernel. The KVM subsystem allows out-of-range access to memslots after a deletion. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Mitigation Mitigation for this issue is either not available or the...

CVE-2020-36312

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. Mitigation Mitigation for this issue is either not available or the currently available...

CVE-2020-36310

A flaw was found in the Linux kernel. A nested page fault is created when an address does not have a memslot associated to it. The highest threat from this vulnerability is to system availability. This flaw can be triggered using a malformed Virtual Machine. When triggered this bug will lead to t...

Low: Red Hat Security Advisory: virt:8.3 and virt-devel:8.3 security and bug fix update

An update for the virt:8.3 and virt-devel:8.3 modules is now available for Advanced Virtualization for RHEL 8.3.1. 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 rating, is...

The vulnerability in the arch/x86/kvm/svm/sev.c component of the Kernel-based Virtual Machine (KVM) virtualization subsystem of Linux operating systems allows a attacker to cause a service failure.

The vulnerability in the kernel-based virtual machine KVM virtualization subsystem of Linux operating systems, specifically in the arch/x86/kvm/svm/sev.c component, involves uncontrolled resource consumption. Exploiting this vulnerability can allow an attacker to cause service failures...

RHEL 8 : virt:8.3 and virt-devel:8.3 (RHSA-2021:1125)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2021:1125 advisory. The Advanced Virtualization module provides the user-space component for running virtual machines that use KVM in environments managed by Red Hat...

DEBIAN-CVE-2020-36312

An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvmmain.c has a kvmiobusunregisterdev memory leak upon a kmalloc failure, aka CID-f65886606c2d...

CVE-2020-36313

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvmhost.h, and virt/kvm/kvmmain.c...

Arbitrary file deletion

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvmhost.h, and virt/kvm/kvmmain.c...

CVE-2020-36311

An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of service soft lockup by triggering destruction of a large SEV VM which requires unregistering many encrypted regions, aka CID-7be74942f184...

UBUNTU-CVE-2020-36312

An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvmmain.c has a kvmiobusunregisterdev memory leak upon a kmalloc failure, aka CID-f65886606c2d...

kernel security, bug fix, and enhancement update

4.18.0-240.22.13.OL8 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

Linux kernel memory leak vulnerability (CNVD-2021-29473)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A kvmiobusunregisterdev memory leak vulnerability exists in virt/kvm/kvmmain.c in versions of Linux kernel prior to...

CVE-2021-20255 affecting package qemu-kvm 4.2.0-48

CVE-2021-20255 affecting package qemu-kvm 4.2.0-48. A patched version of the package is available...

CVE-2021-20203 affecting package qemu-kvm 4.2.0-48

CVE-2021-20203 affecting package qemu-kvm 4.2.0-48. A patched version of the package is available...

CVE-2020-36312

An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvmmain.c has a kvmiobusunregisterdev memory leak upon a kmalloc failure, aka CID-f65886606c2d...

CVE-2020-36312

CVE-2020-36312 affects the Linux kernel up to version 5.8.9, where in virt/kvm/kvm_main.c a kmalloc failure can trigger a memory leak in kvm_io_bus_unregister_dev. The connected Nessus advisories confirm the issue as a kernel-level leak and reference the fixed patch in 5.8.10 (ChangeLog-5.8.10; c...

CVE-2020-36313

CVE-2020-36313 affects the Linux kernel before 5.7. The KVM subsystem allows out‑of‑range access to memslots after a deletion (CID-0774a964ef56), impacting arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c. Root cause is a memslot handling bug in KVM/s390; exploitation d...

CVE-2020-36313

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvmhost.h, and virt/kvm/kvmmain.c...

CVE-2020-36313

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvmhost.h, and virt/kvm/kvmmain.c...