Xen Information Disclosure Vulnerability (CNVD-2016-01947)

Xen is an open source virtual machine monitor product developed at the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. An information disclosure...

broken AMD FPU FIP/FDP/FOP leak workaround

ISSUE DESCRIPTION There is a workaround in Xen to deal with the fact that AMD CPUs don't load the x86 registers FIP and possibly FCS, FDP and possibly FDS, and FOP from memory via XRSTOR or FXRSTOR when there is no pending unmasked exception. See XSA-52. However, this workaround does not cover al...

Fedora 23 : kernel-4.4.2-301.fc23 (2016-7e12ae5359)

This is an incremental update over 4.4.2-300 which contains two fixes fix for AMD IOMMU warnings use after free in USB ---- The 4.4.2 update contains a number of important updates across the kernel tree. Note that Tenable Network Security has extracted the preceding description block directly fro...

Xen Project Explains Patch SNAFU

Xen Project dropped the ball on two important security patches when it released a maintenance update for its popular hypervisor software on Tuesday. On its company blog today, Xen acknowledged what it called an “oversight” and attempted to explain what went wrong. Effected is maintenance release...

VMX: guest user mode may crash guest with non-canonical RIP

ISSUE DESCRIPTION VMX refuses attempts to enter a guest with an instruction pointer which doesn't satisfy certain requirements. In particular, the instruction pointer needs to be canonical when entering a guest currently in 64-bit mode. This is the case even if the VM entry information specifies ...

community.amd.com Open Redirect vulnerability

Vulnerable URL: https://community.amd.com/external-link.jspa?url=http://xssposed.org/ Details: Description| Value ---|--- Patched:| Yes, at 18.12.2016 Latest check for patch:| 18.12.2016 12:29 GMT Vulnerability type:| Open Redirect Vulnerability status:| Publicly disclosed Alexa Rank| Unknown / N...

FreeBSD : qemu and xen-tools -- denial of service vulnerabilities in AMD PC-Net II NIC support (405446f4-b1b3-11e5-9728-002590263bf5)

Prasad J Pandit, Red Hat Product Security Team, reports : Qemu emulator built with the AMD PC-Net II Ethernet Controller support is vulnerable to a heap buffer overflow flaw. While receiving packets in the loopback mode, it appends CRC code to the receive buffer. If the data size given is same as...

CentOS 6 : qemu-kvm (CESA-2015:2694)

Updated qemu-kvm packages that fix two security issues are now available for Red Hat Enterprise Linux 6. 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 available fo...

RHEL 6 : qemu-kvm (RHSA-2015:2694)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:2694 advisory. KVM Kernel-based Virtual Machine is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm package provides th...

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

Updated qemu-kvm-rhev packages that fix two security issues are now available for Red Hat Enterprise Virtualization. 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...

Ubuntu: Security Advisory (USN-2840-1)

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 (Wily HWE) vulnerabilities (USN-2843-2)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2843-2 advisory. Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An...

Ubuntu: Security Advisory (USN-2842-1)

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-2842-2)

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...

[SECURITY] [DSA 3426-1] linux security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3426-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso December 17, 2015 https://www.debian.org/security/faq -...

USN-2843-2: Linux kernel (Wily HWE) vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...

USN-2844-1: Linux kernel (Utopic HWE) vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...

USN-2842-2 linux-lts-vivid vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...

USN-2842-2: Linux kernel (Vivid HWE) vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...

USN-2842-1: Linux kernel vulnerabilities

Jan Beulich discovered that the KVM svm hypervisor implementation in the Linux kernel did not properly catch Debug exceptions on AMD processors. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS. CVE-2015-8104 郭永刚 discovered that the pp...