xen-kernel -- x86 shadow pagetables: address width overflow

The Xen Project reports: In the x86 shadow pagetable code, the guest frame number of a superpage mapping is stored in a 32-bit field. If a shadowed guest can cause a superpage mapping of a guest-physical address at or above 2^44 to be shadowed, the top bits of the address will be lost, causing an...

DEBIAN-CVE-2015-8552

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate a continuous stream of WARN messages and cause a denial of service disk consumption by leveraging a system with access to a...

DEBIAN-CVE-2015-8551

The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to hit BUG conditions and cause a denial of service NULL pointer dereference and host OS crash by leveraging a system with access to a...

Linux DoS Xen 4.2.0 2012-5525

This module causes a hypervisor crash in Xen 4.2.0 when invoked from a paravirtualized VM, including from dom0. Successfully tested on Debian 7 3.2.0-4-amd64 with Xen 4.2.0. This module requires Metasploit: https://metasploit.com/download Current source:...

[SECURITY] Fedora 23 Update: xen-4.5.3-1.fc23

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 22 Update: xen-4.5.3-1.fc22

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

Xen: Multiple vulnerabilities

Background Xen is a bare-metal hypervisor. Description Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details. Impact A local attacker could possibly cause a Denial of Service condition or obtain sensitive information. Workaround There...

[SECURITY] Fedora 23 Update: xen-4.5.2-9.fc23

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

[SECURITY] Fedora 22 Update: xen-4.5.2-9.fc22

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

The vulnerability of Xen hypervisors, which allows a malicious actor to trigger a service failure

The vulnerability of Xen hypervisors exists due to insufficient checking of input data. Exploiting this vulnerability can allow a local attacker to trigger a service failure host reboot by manipulating numerous MMIO pages with various cache settings...

CentOS Update for kernel CESA-2016:0450 centos5

Check the version of kernel SPDX-FileCopyrightText: 2016 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"1.3.6.1.4.1.25623.1.0.882425";...

The vulnerability of Xen hypervisors, which allows a malicious actor to trigger a service failure

The vulnerability of the VMX component of the Xen hypervisor is related to pointer swapping errors. Exploiting this vulnerability can allow an attacker, operating locally, to cause a service failure by engaging in actions related to the RIP protocol...

kernel security update

CentOS Errata and Security Advisory CESA-2016:0450 Updated kernel packages that fix two security issues and two bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base...

Scientific Linux Security Update : kernel on SL5.x i386/x86_64 (20160315)

An integer overflow flaw was found in the way the Linux kernel's Frame Buffer device implementation mapped kernel memory to user space via the mmap syscall. A local user able to access a frame buffer device file /dev/fb could possibly use this flaw to escalate their privileges on the system...

RHEL 5 : kernel (RHSA-2016:0450)

Updated kernel packages that fix two security issues and two bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are...

RedHat Update for kernel RHSA-2016:0450-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 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...

Oracle Linux 5 : kernel (ELSA-2016-0450)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-0450 advisory. - fb vm: convert fbmmap to vmiomapmemory helper Jacob Tanenbaum 1035240 CVE-2013-2596 - s390 add dummy ioremappfnrange to asm-s390/pgtable.h Jacob...

xen: hypervisor memory corruption due to x86 emulator flaw (xsa123)

It was found that the Xen hypervisor x86 CPU emulator implementation did not correctly handle certain instructions with segment overrides, potentially resulting in a memory corruption. A malicious guest user could use this flaw to read arbitrary data relating to other guests, cause a denial of...

Important: Red Hat Security Advisory: kernel security update

Updated kernel packages that fix two security issues and two bugs are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are...

RHEL 6 : rhev-hypervisor (RHSA-2016:0379) (DROWN)

An updated rhev-hypervisor package that fixes several security issues, bugs, and enhancements is now available. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...