CVE-2011-2512

mediumpriority · track · 24EPSS 0.019 · 79 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.88% (79th) EPSS

CVSS 5.8 · medium

Is it mine?

8 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-28

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedqemu-img-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0919
Fixedqemu-kvm-2:0.12.1.2-2.160.el6_1.2.src as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0919
Fixedqemu-kvm-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0919
Fixedqemu-kvm-debuginfo-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0919
Fixedqemu-kvm-tools-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)redhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259
https://access.redhat.com/errata/RHSA-2011:0919

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:A/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 6.5 · impact 6.4

v2.04.9mediumAV:A/AC:L/Au:N/C:P/I:P/A:P/E:Usecondary · CVSS-BT (t0sche)

v2.06.5mediumAV:A/AC:H/Au:S/C:C/I:C/A:Csecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
kvm group qemu-kvm≤ 0.14.0nvdUScpe:2.3:a:kvm_group:qemu-kvm:*:*:*:*:*:*:*:*
kvm group qemu-kvm= 0.12nvdUScpe:2.3:a:kvm_group:qemu-kvm:*:*:*:*:*:*:*:*
qemu-img-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
qemu-kvm-2:0.12.1.2-2.160.el6_1.2.src as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
qemu-kvm-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
qemu-kvm-debuginfo-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS
qemu-kvm-tools-2:0.12.1.2-2.160.el6_1.2.x86_64 as a component of Red Hat Enterprise Linux Server (v. 6)all versionsfixedredhat_csafUS

advisories (1)

Vendor and ecosystem advisories describing this.

RHSA-2011:0919Red Hat Security Advisory: qemu-kvm security and bug fix update2011-07-05csaf · redhat_csafUS
Updated qemu-kvm packages that fix two security issues and one bug are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2012-06-21modified 2026-06-16

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references (43)

External citations — patches, advisories, analysis.

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