Important: Red Hat Security Advisory: edk2 security update

An update for edk2 is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. 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 ea...

RHEL 8 : kernel (RHSA-2021:3363)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3363 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: race condition in net/can/bcm....

SUSE SLES12 Security Update : kernel (Live Patch 40 for SLE 12 SP3) (SUSE-SU-2021:2846-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2846-1 advisory. This update for the Linux Kernel 4.4.180-94147 fixes several issues. The following security issues were fixed: - CVE-2021-37576: On...

SUSE-SU-2021:2846-1 Security update for the Linux Kernel (Live Patch 40 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94147 fixes several issues. The following security issues were fixed: - CVE-2021-37576: On the powerpc platform KVM guest OS users could cause host OS memory corruption via rtasargs.nargs bsc1188838. - CVE-2021-28688: The fix for XSA-365 includes...

Denial Of Service (DoS)

linux-kvm:bionic is vulnerable to denial of service. The XFRM subsystem has a use-after-free, related to an xfrmstatefini panic, aka CID-dbb2483b2a46...

CVE-2021-29657

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...

Ubuntu: Security Advisory (USN-5045-1)

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

SUSE SLES12: kernel-livepatch-4_12_14-150_75-default / etc (SUSE-SU-2021:2695-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2695-1 advisory. This update for the Linux Kernel 4.12.14-12280 fixes several issues. The following security issues were fixed: - CVE-2021-22543: Fixed...

SUSE SLES12: kernel-livepatch-4_12_14-150_72-default / etc (SUSE-SU-2021:2746-1)

The remote SUSE Linux SLES12 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2746-1 advisory. This update for the Linux Kernel 4.12.14-12277 fixes several issues. The following security issues were fixed: - CVE-2021-22543: Fixed...

SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:2756-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2756-1 advisory. The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: ...

CVE-2021-3682 affecting package qemu-kvm 4.2.0-48

CVE-2021-3682 affecting package qemu-kvm 4.2.0-48. A patched version of the package is available...

SUSE-SU-2021:2746-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP3)

This update for the Linux Kernel 5.3.18-57 fixes several issues. The following security issues were fixed: - CVE-2021-22543: Fixed an issue with KVM, related to the handling of VMIO|VMPFNMAP vmas, which allowed users with the ability to start and control a VM to read/write random pages of memory...

SUSE-SU-2021:2695-1 Security update for the Linux Kernel (Live Patch 17 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-2475 fixes several issues. The following security issues were fixed: - CVE-2021-22543: Fixed an issue with KVM, related to the handling of VMIO|VMPFNMAP vmas, which allowed users with the ability to start and control a VM to read/write random pages of memor...

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: edk2 security update

An update for edk2 is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. 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 ea...

CVE-2021-3653

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

CVE-2021-3656

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...

CVE-2021-3656

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...

CVE-2021-3653

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

Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9422)

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-9422 advisory. - KVM: nSVM: always intercept VMLOAD/VMSAVE when nested Maxim Levitsky Orabug: 33205367 CVE-2021-3656 Tenable has extracted the preceding description...