the ultimate security vulnerability data source
(e.g.: CVE-2009-1234 or 2010-1234 or 20101234)
Log In   Register
Vulnerability Feeds & WidgetsNew  

Vulnerability Details : CVE-2011-2512

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.
Publish Date : 2012-06-21 Last Update Date : 2016-12-07
Search Twitter   Search YouTube   Search Google

- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceExecute CodeBypass a restriction or similar

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
AV:A/AC:H/Au:S/C:C/I:C/A:C 2011-06-27 2011-05-08
If you are a vendor and you have additional data which can be automatically imported into our database, please contact admin @

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-2512 unix
DEPRECATED: ELSA-2011-0919 -- qemu-kvm security and bug fix update (important) oval:org.mitre.oval:def:28000 unix
ELSA-2011:0919: qemu-kvm security and bug fix update (Important) oval:org.mitre.oval:def:23582 unix
RHSA-2011:0919: qemu-kvm security and bug fix update (Important) oval:org.mitre.oval:def:22055 unix
RHSA-2011:0919: qemu-kvm security and bug fix update (Important) oval:com.redhat.rhsa:def:20110919 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-2512

# Product Type Vendor Product Version Update Edition Language
1 Application Kvm Group Qemu-kvm 0.12 Version Details Vulnerabilities
2 Application Kvm Group Qemu-kvm 0.14.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Kvm Group Qemu-kvm 2

- References For CVE-2011-2512
MLIST [oss-security] 20110629 Re: CVE request: qemu-kvm: OOB memory access caused by negative vq notifies
SUSE SUSE-SU-2011:0806
MLIST [oss-security] 20110628 CVE request: qemu-kvm: OOB memory access caused by negative vq notifies
REDHAT RHSA-2011:0919
SUSE openSUSE-SU-2011:0803;a=commitdiff;h=7157e2e23e89adcd436caeab31fdd6b47eded377 CONFIRM

- Metasploit Modules Related To CVE-2011-2512

There are not any metasploit modules related to this CVE entry (Please visit for more information)

CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site. OVAL is a registered trademark of The MITRE Corporation and the authoritative source of OVAL content is MITRE's OVAL web site.
Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.