CVE-2012-0879

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2012-0879
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-05-17 11:00:36 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionThe I/O implementation for block devices in the Linux kernel before 2.6.33 does not properly handle the CLONE_IO feature, which allows local users to cause a denial of service (I/O instability) by starting multiple processes that share an I/O context.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-400 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:L/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 10.04 All All All
Operating System Debian Debian Linux 6.0 All All All
Operating System Linux Linux Kernel All All All All
Operating System Suse Linux Enterprise Desktop 11 sp1 All All
Operating System Suse Linux Enterprise Desktop 11 sp2 All All
Operating System Suse Linux Enterprise High Availability Extension 11 sp1 All All
Operating System Suse Linux Enterprise Server 11 sp1 All All
Operating System Suse Linux Enterprise Server 11 sp1 All All
Operating System Suse Linux Enterprise Server 11 sp2 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
git.kernel.org af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree af854a3a-2127-422b-91ae-364da2661108 git.kernel.org
rhn.redhat.com/errata/RHSA-2012-0481.html af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
USN-1410-1: Linux kernel (EC2) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
'[security bulletin] HPSBGN02970 rev.1 - HP Rapid Deployment Pack (RDP) or HP Insight Control Server ' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info Mailing List, Third Party Advisory
Linux Kernel CLONE_IO Bug Lets Local Users Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
oss-security - Re: CVE request -- kernel: block: CLONE_IO io_context refcounting issues af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
[security-announce] SUSE-SU-2012:0616-1: important: Security update for af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-2469-1 linux-2.6 af854a3a-2127-422b-91ae-364da2661108 www.debian.org Third Party Advisory
404 Not Found af854a3a-2127-422b-91ae-364da2661108 ftp.osuosl.org Broken Link
block: Fix io_context leak after failure of clone with CLONE_IO · torvalds/linux@b69f229 · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
Bug 796829 – CVE-2012-0879 kernel: block: CLONE_IO io_context refcounting issues af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com Third Party Advisory
USN-1408-1: Linux kernel (FSL-IMX51) vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
Security Advisory SA48545 - Ubuntu update for linux - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com Not Applicable
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Not Applicable
block: Fix io_context leak after clone with CLONE_IO · torvalds/linux@61cc74f · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Patch, Third Party Advisory
USN-1411-1: Linux kernel vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Third Party Advisory
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
kernel/git/torvalds/linux.git - Linux kernel source tree MITRE git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

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.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report