Ubuntu: Security Advisory (USN-2802-1)

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-2804-1)

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-2805-1)

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-2803-1)

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 14.04 LTS : Linux kernel (Utopic HWE) vulnerability (USN-2805-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-2805-1 advisory. Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtu...

Debian Security Advisory DSA 3396-1 (linux - security update)

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service. CVE-2015-5307Ben Serebrin from Google discovered a guest to host denial of service flaw affecting the KVM hypervisor. A malicious guest can trigger an infinite stream of alignment check AC...

Ubuntu 15.10 : linux vulnerability (USN-2803-1)

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. Note that Tenable Network Security has extracted th...

Ubuntu: Security Advisory (USN-2800-1)

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-2801-1)

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 14.04 LTS : Linux kernel vulnerability (USN-2801-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-2801-1 advisory. Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtu...

Ubuntu 15.04 : linux vulnerability (USN-2802-1)

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. Note that Tenable Network Security has extracted th...

[SECURITY] Fedora 23 Update: xen-4.5.1-14.fc23

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

VMware ESXi 'SLPDProcessMessage()' function remote code execution vulnerability

VMware ESXi is a bare-metal virtualization hypervisor that is installed directly on a physical server and divides the physical server into multiple virtual machines. The program features less disk space, higher reliability and security. A remote code execution vulnerability exists in VMware ESXi,...

DEBIAN-CVE-2015-7835

The modl2entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping...

CVE-2015-7835

The modl2entry function in arch/x86/mm.c in Xen 3.4 through 4.6.x does not properly validate level 2 page table entries, which allows local PV guest administrators to gain privileges via a crafted superpage mapping...

DEBIAN-CVE-2015-7813

Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of 1 HYPERVISORphysdevop hypercalls, which are not properly handled in the dophysdevop function in...

CVE-2015-7813

Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of 1 HYPERVISORphysdevop hypercalls, which are not properly handled in the dophysdevop function in...

CVE-2015-7813

Xen 4.4.x, 4.5.x, and 4.6.x does not limit the number of printk console messages when reporting unimplemented hypercalls, which allows local guests to cause a denial of service via a sequence of 1 HYPERVISORphysdevop hypercalls, which are not properly handled in the dophysdevop function in...

Xen Patches VM Escape Vulnerability

The Xen Project, which oversees the open source Xen hypervisor, yesterday patched a seven-year-old vulnerability that allows an attacker to escape a guest virtual machine and attack the host operating system. The flaw is so bad that the developers of the Qubes OS Project, a security-heavy operati...

arm: various unimplemented hypercalls log without rate limiting

ISSUE DESCRIPTION The HYPERVISORphysdevop hypercall and most suboperations of the HYPERVISORhvmop hypercall are not currently implemented by Xen on ARM and when called will log the use to the hypervisor console. However these guest accessible log messages are not rate-limited. IMPACT A malicious...