Xen elevation of privilege vulnerability (CNVD-2019-07942)

Xen is an open source virtual machine monitor developed by the Xen Project. An elevation of privilege vulnerability exists in 4.11.x and earlier versions of Xen on AMD x86 platforms, which stems from the fact that a TLB refresh is sometimes not performed after an IOMMU mapping change, and can be...

x86: DoS from attempting to use INVPCID with a non-canonical addresses

ISSUE DESCRIPTION The INVPCID instruction raises GP0 if an attempt is made to invalidate a non-canonical address. Older flushing mechanisms such as INVLPG tolerate this without error, and perform no action. There is one guest accessible path in Xen where a non-canonical address was passed into th...

7 New Meltdown and Spectre-type CPU Flaws Affect Intel, AMD, ARM CPUs

Disclosed earlier this year, potentially dangerous Meltdown and Spectre vulnerabilities that affected a large family of modern processors proven that speculative execution attacks can be exploited in a trivial way to access highly sensitive information. Since then, several more variants of...

November 13, 2018—KB4467703 (Security-only update)

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November 13, 2018—KB4467701 (Monthly Rollup)

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November 13, 2018—KB4467700 (Security-only update)

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November 13, 2018—KB4467678 (Security-only update)

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November 13, 2018—KB4467706 (Monthly Rollup)

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October 18, 2018—KB4462939 (OS Build 15063.1418)

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Speculative Execution Side Channel Vulnerability Variants - Lenovo Support US

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August 14, 2018—KB4343899 (Security-only update)

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MGASA-2018-0322 Updated microcode packages fix security vulnerability

This microcode update provides the first set of fixes for Speculative Store Bypass SSBD, Spectre v4, CVE-2018-3639 and Rogue System Register Read RSRE, Spectre v3a, CVE-2018-3640 for Intel Sandybridge server, Ivy Bridge server, Haswell server, Skylake server, Broadwell server, a few HEDT Core i7/...

USN-3690-2: AMD Microcode regression | Cloud Foundry

Vendor Canonical Ubuntu Versions Affected Canonical Ubuntu 14.04 Description USN-3690-1 provided updated microcode for AMD processors to address CVE-2017-5715 aka Spectre. Unfortunately, the update caused some systems to fail to boot. This update reverts the update for Ubuntu 14.04 LTS. We...

July 10, 2018—KB4338820 (Security-only update)

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July 10, 2018—KB4338815 (Monthly Rollup)

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July 10, 2018—KB4338824 (Security-only update)

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CentOS Update for qemu-img CESA-2018:2001 centos7

Check the version of qemu-img SPDX-FileCopyrightText: 2018 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 scriptoid"1.3.6.1.4.1.25623.1.0.882914";...

CentOS Update for libvirt CESA-2018:1997 centos7

Check the version of libvirt SPDX-FileCopyrightText: 2018 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 scriptoid"1.3.6.1.4.1.25623.1.0.882917";...

qemu security update

CentOS Errata and Security Advisory CESA-2018:2001 An update for qemu-kvm 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 severit...

libvirt security update

CentOS Errata and Security Advisory CESA-2018:1997 An update for libvirt 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...