RHEL 7 : kernel (RHSA-2021:3801)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:3801 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Improper handling of...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7. 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...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-5071-3)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5071-3 advisory. It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations,...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9451)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9451 advisory. - KVM: nSVM: avoid picking up unsupported bits from L2 in intctl CVE-2021-3653 Maxim Levitsky Orabug: 33226010 CVE-2021-3653 - Revert KVM: nSVM:...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch 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 availabl...

Important: kernel

Issue Overview: 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...

CentOS 8 : kernel (CESA-2021:3057)

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:3057 advisory. - kernel: Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks CVE-2021-22543 - kernel: out-of-bounds write in xtcompattargetfromuser in...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2021:2687-1 Rating: important References: 1065729 1085224 1094840 1113295 1152472 1152489 1153274 1154353 1155518 1156395 1170511 1176447 1176940 1179243 1180092 1180814 1183871 1184114 1184350 1184631...

SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2021:2646-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2646-1 advisory. The SUSE Linux Enterprise 15 SP2 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed: -...

Oracle Linux 8 : kernel (ELSA-2021-3057)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-3057 advisory. - netfilter: xtables: fix compat match/target pad out-of-bound write Florian Westphal 1980500 1980501 CVE-2021-22555 - KVM: do not allow mapping valid...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch 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...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.10.48 and fixes at least the following security issues: The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database aka dbx protection mechanism. This affects certs/blacklist.c and certs/systemkeyring.c...

CVE-2021-22543

An issue was discovered in Linux: KVM through Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and ca...

CVE-2021-22543

An issue was discovered in Linux: KVM through Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and ca...