Moderate: Red Hat Security Advisory: virt:rhel and virt-devel:rhel security and bug fix 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: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel 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 th...

RLSA-2021:3088 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: race condition in net/can/bcm.c leads to local privilege escalation CVE-2021-3609 kernel: Improper handling of VMIO|VMPFNMAP vmas ...

Moderate: virt:rhel and virt-devel:rhel security and bug fix 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 and bug fix update

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

RLSA-2021:3061 Moderate: virt:rhel and virt-devel:rhel security and bug fix 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...

ALSA-2021:3061 Moderate: virt:rhel and virt-devel:rhel security and bug fix 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...

kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2021:2645-1 Rating: important References: 1065729 1085224 1094840 1113295 1152472 1152489 1153274 1154353 1155518 1156395 1170511 1176447 1176940 1179243 1180092 1180814 1183871 1184114 1184350 1184631...

Linux kernel denial-of-service vulnerability (CNVD-2021-60514)

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel is vulnerable due to a failure to properly access permissions flaw in the shadow page in arch/x86/kvm/mmu/pagingtmpl.h. By sending a build request, a local attacker could exploit this flaw t...

Linux kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. Linux kernel is vulnerable due to a failure to properly access permissions flaw in the shadow page in arch/x86/kvm/mmu/pagingtmpl.h. By sending a build request, a local attacker could exploit this flaw t...

SUSE-SU-2021:14774-1 Security update for kvm

This update for kvm fixes the following issues: - CVE-2021-3594: invalid pointer initialization may lead to information disclosure in slirp udp bsc1187367 - CVE-2021-3592: invalid pointer initialization may lead to information disclosure bootp. bsc1187364 - CVE-2021-3416: infinite loop in loopbac...

SUSE-SU-2021:14772-1 Security update for kvm

This update for kvm fixes the following issues: - CVE-2021-3594: invalid pointer initialization may lead to information disclosure in slirp udp bsc1187367 - CVE-2021-3592: invalid pointer initialization may lead to information disclosure bootp. bsc1187364 - CVE-2021-3416: infinite loop in loopbac...

GSD-2021-1001467 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.4.277 by commit...

UVI-2021-1001467 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.4.277 by commit...

UVI-2021-1001436 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.9.277 by commit...

GSD-2021-1001436 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.9.277 by commit...

UVI-2021-1001403 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.14.241 by commit...

GSD-2021-1001403 KVM: PPC: Book3S: Fix H_RTAS rets buffer overflow

KVM: PPC: Book3S: Fix HRTAS rets buffer overflow 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 v4.14.241 by commit...