kernel: kvm: excessive pages un-pinning in kvm_iommu_map error path

It was found that the fix for CVE-2014-3601 was incomplete: the Linux kernel's kvmiommumappages function still handled IOMMU mapping failures incorrectly. A privileged user in a guest with an assigned host device could use this flaw to crash the host...

kernel security and bug fix update

2.6.32-504.12.2 - infiniband core: Prevent integer overflow in ibumemget address arithmetic Doug Ledford 1181173 1179327 CVE-2014-8159 2.6.32-504.12.1 - fs splice: perform generic write checks Eric Sandeen 1163798 1155900 CVE-2014-7822 2.6.32-504.11.1 - virt kvm: excessive pages un-pinning in...

qemu-kvm security, bug fix, and enhancement update

1.5.3-86.el7 - kvm-vfio-pci-Fix-interrupt-disabling.patch bz1180942 - kvm-cirrus-fix-blit-region-check.patch bz1169456 - kvm-cirrus-don-t-overflow-CirrusVGAState-cirrusbltbuf.patch bz1169456 - Resolves: bz1169456 CVE-2014-8106 qemu-kvm: qemu: cirrus: insufficient blit region checks rhel-7.1 -...

[SECURITY] [DSA 3170-1] linux security update

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3160-1 [email protected] http://www.debian.org/security/ Ben Hutchings February 23, 2015 http://www.debian.org/security/faq -...

RHEL 7 : qemu-kvm-rhev (RHSA-2015:0624)

Updated qemu-kvm-rhev packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring Syste...

RedHat Update for qemu-kvm RHSA-2015:0349-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 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...

Important: Red Hat Security Advisory: qemu-kvm-rhev security update

Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Linux OpenStack Platform 6.0 for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System CVSS base scor...

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

Updated kernel packages that fix multiple security issues, address several hundred bugs, and add numerous enhancements are now available as part of the ongoing support and maintenance of Red Hat Enterprise Linux version 7. This is the first regular update. Red Hat Product Security has rated this...

Important: Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update

Updated qemu-kvm-rhev packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring Syste...

Important: Red Hat Security Advisory: qemu-kvm security, bug fix, and enhancement update

Updated qemu-kvm packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which...

RHEL 7 : qemu-kvm (RHSA-2015:0349)

Updated qemu-kvm packages that fix multiple security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which...

RHEL 6 : kernel (RHSA-2015:0284)

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.5 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which gi...

USN-2515-2: Linux kernel (Trusty HWE) vulnerabilities regression

USN-2515-1 fixed vulnerabilities in the Linux kernel. There was an unrelated regression in the use of the virtual counter CNTVCT on arm64 architectures. This update fixes the problem. We apologize for the inconvenience. Original advisory details: A flaw was discovered in the Kernel Virtual...

Linux kernel denial of service vulnerability (CNVD-2015-01443)

The Linux Kernel is the kernel of the Linux operating system. A denial of service vulnerability exists in the emsysenter function in arch/x86/kvm/emulate.c in versions of the Linux kernel prior to 3.18.5, which allows attackers to exploit the vulnerability to gain OS privileges or cause a denial ...

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

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.5 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which gi...

USN-2516-2 linux vulnerability

USN-2516-1 fixed vulnerabilities in the Linux kernel. There was an unrelated regression in the use of the virtual counter CNTVCT on arm64 architectures. This update fixes the problem. We apologize for the inconvenience. Original advisory details: A flaw was discovered in the Kernel Virtual...

Ubuntu: Security Advisory (USN-2513-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 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-2515-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 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 12.04 LTS : linux vulnerabilities (USN-2513-1)

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...

USN-2518-1: Linux kernel vulnerabilities

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...