USN-2692-1: QEMU vulnerabilities

Matt Tait discovered that QEMU incorrectly handled PIT emulation. In a non-default configuration, a malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is use...

qemu/kvm: i8254: out-of-bounds memory access in pit_ioport_read function

An out-of-bounds memory access flaw, leading to memory corruption or possibly an information leak, was found in QEMU's pitioportread function. A privileged guest user in a QEMU guest, which had QEMU PIT emulation enabled, could potentially, in rare cases, use this flaw to execute arbitrary code o...

qemu/kvm: i8254: out-of-bounds memory access in pit_ioport_read function

An out-of-bounds memory access flaw, leading to memory corruption or possibly an information leak, was found in QEMU's pitioportread function. A privileged guest user in a QEMU guest, which had QEMU PIT emulation enabled, could potentially, in rare cases, use this flaw to execute arbitrary code o...

QEMU 'pit_ioport_read()' function memory corruption vulnerability

QEMU is an open source emulator software. QEMU has a memory corruption vulnerability in the pitioportread function, which allows an attacker to exploit this vulnerability to execute arbitrary code on the host...

UBUNTU-CVE-2015-3214

The pitioportread in i8254.c in the Linux kernel before 2.6.33 and QEMU before 2.3.1 does not distinguish between read lengths and write lengths, which might allow guest OS users to execute arbitrary code on the host OS by triggering use of an invalid index...

PT-2015-1942 · Linux +6 · Linux Kernel +6

Name of the Vulnerable Software and Affected Versions: QEMU versions prior to 2.3.1 Linux kernel versions prior to 2.6.33 Description: The issue is caused by a buffer overflow in the pit ioport read function of the QEMU emulator, which does not properly distinguish between read lengths and write...

qemu -- code execution on host machine

Petr Matousek of Red Hat Inc. reports: Due converting PIO to the new memory read/write api we no longer provide separate I/O region lenghts for read and write operations. As a result, reading from PIT Mode/Command register will end with accessing pit-channels with invalid index and potentially...

Scientific Linux Security Update : kvm on SL5.x x86_64 (20150422)

It was found that KVM's Write to Model Specific Register WRMSR instruction emulation would write non-canonical values passed in by the guest to certain MSRs in the host's context. A privileged guest user could use this flaw to crash the host. CVE-2014-3610 A race condition flaw was found in the w...

RHEL 5 : kvm (RHSA-2015:0869)

Updated kvm packages that fix two security issues 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 available for eac...

kernel: kvm: PIT timer race condition

A race condition flaw was found in the way the Linux kernel's KVM subsystem handled PIT Programmable Interval Timer emulation. A guest user who has access to the PIT I/O ports could use this flaw to crash the host...

kvm security update

kvm-83-270.0.1.el511 - Added kvm-add-oracle-workaround-for-libvirt-bug.patch - Added kvm-Introduce-oel-machine-type.patch kvm-83-270.el5 - KVM: x86: Check non canonical addresses upon WRMSR - Resolves: bz1152982 CVE-2014-3610 kernel: kvm: noncanonical MSR writes rhel-5.11.z kvm-83-269.el5 - KVM:...

Updated kernel-rt packages fix security vulnerabilities

This kernel-rt update provides as upgrade to upstream 3.14 longterm branch, currently based on 3.14.32 and fixes the following security issues: The microcode on AMD 16h 00h through 0Fh processors does not properly handle the interaction between locked instructions and write-combined memory types,...

kernel: kvm: PIT timer race condition

A race condition flaw was found in the way the Linux kernel's KVM subsystem handled PIT Programmable Interval Timer emulation. A guest user who has access to the PIT I/O ports could use this flaw to crash the host...

USN-2491-1: Linux kernel (EC2) vulnerabilities

Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment SS register in the x86 architecture. A local attacker could exploit this flaw to gain administrative privileges. CVE-2014-9322 Lars Bull reported a race condition in the PIT...

Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-2491-1)

Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment SS register in the x86 architecture. A local attacker could exploit this flaw to gain administrative privileges. CVE-2014-9322 Lars Bull reported a race condition in the PIT...

Ubuntu: Security Advisory (USN-2462-1)

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 10.04 LTS : linux vulnerabilities (USN-2462-1)

Lars Bull reported a race condition in the PIT programmable interrupt timer emulation in the KVM Kernel Virtual Machine subsystem of the Linux kernel. A local guest user with access to PIT i/o ports could exploit this flaw to cause a denial of service crash on the host. CVE-2014-3611 Lars Bull an...

USN-2462-1: Linux kernel vulnerabilities

Andy Lutomirski discovered that the Linux kernel does not properly handle faults associated with the Stack Segment SS register in the x86 architecture. A local attacker could exploit this flaw to gain administrative privileges. CVE-2014-9322 Lars Bull reported a race condition in the PIT...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2014-3096)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-3096 advisory. - net: sctp: fix panic on duplicate ASCONF chunks Daniel Borkmann Orabug: 19953088 CVE-2014-3687 - net: sctp: fix skboverpanic when receiving...

USN-2418-1: Linux kernel (OMAP4) vulnerabilities

Nadav Amit reported that the KVM Kernel Virtual Machine mishandles noncanonical addresses when emulating instructions that change the rip Instruction Pointer. A guest user with access to I/O or the MMIO can use this flaw to cause a denial of service system crash of the guest. CVE-2014-3647 A flaw...