what you don't know can hurt you
Showing 1 - 4 of 4 RSS Feed

CVE-2011-2512

Status Candidate

Overview

The virtio_queue_notify in qemu-kvm 0.14.0 and earlier does not properly validate the virtqueue number, which allows guest users to cause a denial of service (guest crash) and possibly execute arbitrary code via a negative number in the Queue Notify field of the Virtio Header, which bypasses a signed comparison.

Related Files

Gentoo Linux Security Advisory 201210-04
Posted Oct 18, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201210-4 - Multiple vulnerabilities were found in qemu-kvm, allowing attackers to execute arbitrary code. Versions less than 1.1.1-r1 are affected.

tags | advisory, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2011-1750, CVE-2011-1751, CVE-2011-2212, CVE-2011-2512, CVE-2012-0029, CVE-2012-2652
MD5 | 8cf88c2abb7d5c9fae2da6011a9adc0e
Ubuntu Security Notice USN-1165-1
Posted Jul 7, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1165-1 - Nelson Elhage discovered that QEMU did not properly validate certain virtqueue requests from the guest. An attacker could exploit this to cause a denial of service of the guest or possibly execute code with the privileges of the user invoking the program. Stefan Hajnoczi discovered that QEMU did not properly perform integer comparisons when performing virtqueue input validation. An attacker could exploit this to cause a denial of service of the guest or possibly execute code with the privileges of the user invoking the program. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2011-2212, CVE-2011-2512
MD5 | ab3cc06b19dc5f735aa205a0cfae341a
Red Hat Security Advisory 2011-0919-01
Posted Jul 5, 2011
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2011-0919-01 - KVM is a full virtualization solution for Linux on AMD64 and Intel 64 systems. qemu-kvm is the user-space component for running virtual machines using KVM. It was found that the virtio subsystem in qemu-kvm did not properly validate virtqueue in and out requests from the guest. A privileged guest user could use this flaw to trigger a buffer overflow, allowing them to crash the guest or, possibly, escalate their privileges on the host. It was found that the virtio_queue_notify() function in qemu-kvm did not perform sufficient input validation on the value later used as an index into the array of virtqueues. An unprivileged guest user could use this flaw to crash the guest or, possibly, escalate their privileges on the host. Various other issues were also addressed.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2011-2212, CVE-2011-2512
MD5 | acfde0a8bb486c15526f139378b96744
Debian Security Advisory 2270-1
Posted Jul 1, 2011
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2270-1 - It was discovered that incorrect sanitising of virtio queue commands in KVM, a solution for full virtualization on x86 hardware, could lead to denial of service of the execution of arbitrary code.

tags | advisory, denial of service, arbitrary, x86
systems | linux, debian
advisories | CVE-2011-2512
MD5 | 549d9954811d8668a26e5d80206b96f5
Page 1 of 1
Back1Next

File Archive:

May 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    May 1st
    16 Files
  • 2
    May 2nd
    8 Files
  • 3
    May 3rd
    8 Files
  • 4
    May 4th
    2 Files
  • 5
    May 5th
    1 Files
  • 6
    May 6th
    15 Files
  • 7
    May 7th
    22 Files
  • 8
    May 8th
    16 Files
  • 9
    May 9th
    17 Files
  • 10
    May 10th
    16 Files
  • 11
    May 11th
    3 Files
  • 12
    May 12th
    4 Files
  • 13
    May 13th
    25 Files
  • 14
    May 14th
    24 Files
  • 15
    May 15th
    78 Files
  • 16
    May 16th
    16 Files
  • 17
    May 17th
    16 Files
  • 18
    May 18th
    2 Files
  • 19
    May 19th
    1 Files
  • 20
    May 20th
    11 Files
  • 21
    May 21st
    21 Files
  • 22
    May 22nd
    20 Files
  • 23
    May 23rd
    36 Files
  • 24
    May 24th
    2 Files
  • 25
    May 25th
    0 Files
  • 26
    May 26th
    0 Files
  • 27
    May 27th
    0 Files
  • 28
    May 28th
    0 Files
  • 29
    May 29th
    0 Files
  • 30
    May 30th
    0 Files
  • 31
    May 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close