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...

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...

CVE-2015-8551

CVE-2015-8551 affects the Xen PCI backend driver (pciback) when Xen runs on x86 with a Linux 3.1.x–4.3.x driver domain. The issue arises from missing sanity checks in XEN_PCI_OP_* operations, allowing a local guest administrator with access to a passed-through MSI/MSI-X PCI device to trigger BUG ...

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...

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...

What to Expect in the PCI 3.2 Update

A preview of new requirements and guidance expected later this month from the Payment Card Industry Security Standards Council was announced Thursday. The PCI DSS 3.2 version represents the first update to the standard that the Council has released since 3.1 in April 2015 and 3.0 in November of...

QEMU Denial of Service Vulnerability (CNVD-2016-01943)

QEMU is a simulation processor software developed by French programmer Fabrice Bellard. The software is fast and cross-platform. A security vulnerability exists in QEMU versions 1.6.0 through 2.3.1. When a program maps addresses to MemoryRegionSection using 'addressspacetranslate', an attacker ca...

Updated xen packages fix security vulnerabilities

This xen update is based on upstream 4.5.2 maintenance release, and fixes the following security issues: The vgicv2tosgi function in arch/arm/vgic-v2.c in Xen 4.5.x, when running on ARM hardware with general interrupt controller GIC version 2, allows local guest users to cause a denial of service...

Fedora 22 : xen-4.5.2-7.fc22 (2016-e1784417af)

PV superpage functionality missing sanity checks XSA-167, CVE-2016-1570 VMX: intercept issue with INVLPG on non-canonical address XSA-168, CVE-2016-1571 Qemu: pci: NULL pointer dereference issue CVE-2015-7549 qemu: DoS by infinite loop in ehciadvancestate CVE-2015-8558 qemu: Heap-based buffer...

Fedora 23 : xen-4.5.2-7.fc23 (2016-2c15b72b01)

PV superpage functionality missing sanity checks XSA-167, CVE-2016-1570 VMX: intercept issue with INVLPG on non-canonical address XSA-168, CVE-2016-1571 Qemu: pci: NULL pointer dereference issue CVE-2015-7549 qemu: DoS by infinite loop in ehciadvancestate CVE-2015-8558 qemu: Heap-based buffer...

OracleVM 2.2 : xen (OVMSA-2016-0012)

The remote OracleVM system is missing necessary patches to address critical security updates : - XSA-125: Limit XENDOMCTLmemorymapping hypercall to only process up to 64 GFNs or less Jan Beulich 20732412 CVE-2015-2752 - XSA-126: xen: limit guest control of PCI command register Jan Beulich 2073939...

Debian Security Advisory DSA 3471-1 (qemu - security update)

Several vulnerabilities were discovered in qemu, a full virtualization solution on x86 hardware. CVE-2015-7295 Jason Wang of Red Hat Inc. discovered that the Virtual Network Device support is vulnerable to denial-of-service, that could occur when receiving large packets. CVE-2015-7504 Qinghao Tan...

Ubuntu: Security Advisory (USN-2891-1)

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...

Ubuntu 14.04 LTS : QEMU vulnerabilities (USN-2891-1)

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2891-1 advisory. Qinghao Tang discovered that QEMU incorrectly handled PCI MSI-X support. An attacker inside the guest could use this issue to cause QEMU to crash,...

VirusTotal Firmware Malware Implant Scanning

Successful attacks against firmware are rare but provide hackers with one thing they covet most: persistence. Advanced attack groups have already accelerated their capabilities in finding ways to burrow into the BIOS and EFI as noted by the Snowden leaks’ description of the NSA’s attempts to...

openSUSE Security Update : xen (openSUSE-2016-35)

This update for xen fixes the following security issues : - CVE-2015-8568 CVE-2015-8567: xen: qemu: net: vmxnet3: host memory leakage boo959387 - CVE-2015-8550: xen: paravirtualized drivers incautious about shared memory contents XSA-155, boo957988 - CVE-2015-8558: xen: qemu: usb: infinite loop i...

PCI Council Gives Merchants Reprieve on PCI 3.1 Updates

The Payment Card Industry Security Standards Council PCI SSC released an update to its vulnerability standards and is giving merchants until June 2018 to migrate their security protocols, even though waiting is not recommended...

Debian DSA-3434-1 : linux - security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak. - CVE-2015-7513 It was discovered that a local user permitted to use the x86 KVM subsystem could configure the PIT emulation to cause a denial of servic...

[SECURITY] [DSA 3434-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3434-1 [email protected] https://www.debian.org/security/ Ben Hutchings January 05, 2016 https://www.debian.org/security/faq -...

Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2854-1)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2854-1 advisory. Felix Wilhelm discovered a race condition in the Xen paravirtualized drivers which can cause double fetch vulnerabilities. An attacker in the...