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...

Kernel: KVM: host stack overflow due to lazy update IOAPIC

A stack overflow flaw via an infinite loop condition issue was found in the KVM hypervisor of the Linux kernel. This flaw occurs while processing interrupts because the IRQ state is erroneously set. This flaw allows a guest user to crash the host kernel, resulting in a denial of service. The...

Red Hat Enterprise Linux 缓冲区错误漏洞

Red Hat Enterprise Linux is a Linux operating system for business users from Red Hat. A security vulnerability exists in qemu-kvm in the Red Hat Enterprise Linux 8.3 distribution...

Linux kernel 代码问题漏洞

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 null pointer dereference vulnerability exists in synicget in arch/x86/kvm/hyperv.c in Linux kernel 5.11.11 and...

Linux kernel 安全漏洞

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...

QEMU: Regression of CVE-2020-10756 fix in virt:rhel/qemu-kvm in Red Hat Enterprise Linux 8.3

It was discovered that the update for the virt:rhel module in the RHSA-2020:4676 https://access.redhat.com/errata/RHSA-2020:4676 erratum released as part of Red Hat Enterprise Linux 8.3 failed to include the fix for the qemu-kvm component issue CVE-2020-10756, which was previously corrected in...

Moderate: Red Hat Security Advisory: virt:rhel and virt-devel:rhel security 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...

Moderate: virt:rhel and virt-devel:rhel security 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...

virt:rhel and virt-devel:rhel security update

An update is available for libnbd, nbdkit, libguestfs-winsupport, supermin, libiscsi, hivex, netcf, perl-Sys-Virt, seabios, sgabios, libvirt-dbus, libvirt-python. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...