CVE-2021-4032

A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvmfreelapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with...

CVE-2021-4032

CVE-2021-4032 affects the Linux kernel KVM: arch/x86/kvm/lapic.c kvm_free_lapic. A failure during memory allocation when constructing a VCPU can mishandle memory errors, causing a kernel crash and enabling local-privilege attackers to trigger a denial of service. The issue exists in kernel versio...

Ubuntu: Security Advisory (USN-5210-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...

Ubuntu: Security Advisory (USN-5218-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...

Low: 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 8.5. 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...

USN-5218-1 linux-oem-5.13 vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the eBPF implementation in the Linux...

USN-5218-1: Linux kernel (OEM) vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the eBPF implementation in the Linux...

LSN-0083-1: Kernel Live Patch Security Notice

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.CVE-2018-25020...

LSN-0083-1 Kernel Live Patch Security Notice

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.CVE-2018-25020...

USN-5210-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that the Linux kernel did not properly...

USN-5208-1: Linux kernel vulnerabilities

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. CVE-2021-4002 It was discovered that a race condition existed in the...

EulerOS Virtualization 3.0.2.6 : qemu-kvm (EulerOS-SA-2021-2855)

According to the versions of the qemu-kvm packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - sdwpaddr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhciwrite...

EulerOS Virtualization 3.0.2.6 : kvm (EulerOS-SA-2021-2856)

According to the versions of the kvm package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor...

Huawei EulerOS: Security Advisory for kvm (EulerOS-SA-2021-2856)

The remote host is missing an update for the Huawei EulerOS 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...

Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2021-2855)

The remote host is missing an update for the Huawei EulerOS 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...

GSD-2021-1002835 KVM: VMX: Always clear vmx->fail on emulation_required

KVM: VMX: Always clear vmx-fail on emulationrequired This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.12 by commit...

GSD-2021-1002833 KVM: x86/mmu: Don't advance iterator after restart due to yielding

KVM: x86/mmu: Don't advance iterator after restart due to yielding This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.12 by commit...

Low: 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 Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available f...

ALSA-2021:5238 Low: 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...

RLSA-2021:5238 Low: 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:Rocky Linux module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting wi...