Executive Summary

Informations
NameCVE-2012-2121First vendor Publication2012-05-17
VendorCveLast vendor Modification2014-01-13

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score4.9Attack RangeLocal
Cvss Impact Score6.9Attack ComplexityLow
Cvss Expoit Score3.9AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2121

CWE : Common Weakness Enumeration

idName
CWE-264Permissions, Privileges, and Access Controls

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21460
 
Oval ID: oval:org.mitre.oval:def:21460
Title: RHSA-2012:0676: kvm security and bug fix update (Moderate)
Description: The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.
Family: unix Class: patch
Reference(s): RHSA-2012:0676-00
CESA-2012:0676
CVE-2012-1601
CVE-2012-2121
Version: 29
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): kvm
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23115
 
Oval ID: oval:org.mitre.oval:def:23115
Title: ELSA-2012:0676: kvm security and bug fix update (Moderate)
Description: The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.
Family: unix Class: patch
Reference(s): ELSA-2012:0676-00
CVE-2012-1601
CVE-2012-2121
Version: 13
Platform(s): Oracle Linux 5
Product(s): kvm
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Os1

OpenVAS Exploits

DateDescription
2012-09-22Name : Ubuntu Update for linux-ti-omap4 USN-1577-1
File : nvt/gb_ubuntu_USN_1577_1.nasl
2012-08-30Name : Fedora Update for kernel FEDORA-2012-6344
File : nvt/gb_fedora_2012_6344_kernel_fc17.nasl
2012-07-30Name : CentOS Update for kmod-kvm CESA-2012:0676 centos5
File : nvt/gb_CESA-2012_0676_kmod-kvm_centos5.nasl
2012-07-30Name : CentOS Update for kernel CESA-2012:0743 centos6
File : nvt/gb_CESA-2012_0743_kernel_centos6.nasl
2012-06-19Name : Ubuntu Update for linux-ti-omap4 USN-1476-1
File : nvt/gb_ubuntu_USN_1476_1.nasl
2012-06-19Name : RedHat Update for kernel RHSA-2012:0743-01
File : nvt/gb_RHSA-2012_0743-01_kernel.nasl
2012-06-15Name : Ubuntu Update for linux-lts-backport-natty USN-1470-1
File : nvt/gb_ubuntu_USN_1470_1.nasl
2012-06-15Name : Ubuntu Update for linux-lts-backport-oneiric USN-1471-1
File : nvt/gb_ubuntu_USN_1471_1.nasl
2012-06-15Name : Ubuntu Update for linux USN-1472-1
File : nvt/gb_ubuntu_USN_1472_1.nasl
2012-06-15Name : Ubuntu Update for linux USN-1473-1
File : nvt/gb_ubuntu_USN_1473_1.nasl
2012-06-15Name : Ubuntu Update for linux-ti-omap4 USN-1474-1
File : nvt/gb_ubuntu_USN_1474_1.nasl
2012-06-01Name : Ubuntu Update for linux USN-1457-1
File : nvt/gb_ubuntu_USN_1457_1.nasl
2012-04-26Name : Fedora Update for kernel FEDORA-2012-6406
File : nvt/gb_fedora_2012_6406_kernel_fc15.nasl

Nessus® Vulnerability Scanner

DateDescription
2013-12-04Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2036-1.nasl - Type : ACT_GATHER_INFO
2013-12-04Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2037-1.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-2020.nasl - Type : ACT_GATHER_INFO
2013-07-12Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-2021.nasl - Type : ACT_GATHER_INFO
2013-05-15Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2668.nasl - Type : ACT_GATHER_INFO
2013-01-24Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2012-09-24Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1577-1.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120521_kvm_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-08-01Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120618_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2012-06-21Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2012-06-19Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2012-06-18Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1476-1.nasl - Type : ACT_GATHER_INFO
2012-06-14Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1473-1.nasl - Type : ACT_GATHER_INFO
2012-06-14Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1474-1.nasl - Type : ACT_GATHER_INFO
2012-06-13Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1470-1.nasl - Type : ACT_GATHER_INFO
2012-06-13Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1471-1.nasl - Type : ACT_GATHER_INFO
2012-06-13Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1472-1.nasl - Type : ACT_GATHER_INFO
2012-06-01Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1457-1.nasl - Type : ACT_GATHER_INFO
2012-05-22Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2012-04-26Name : The remote Fedora host is missing a security update.
File : fedora_2012-6406.nasl - Type : ACT_GATHER_INFO
2012-04-25Name : The remote Fedora host is missing a security update.
File : fedora_2012-6386.nasl - Type : ACT_GATHER_INFO
2012-04-24Name : The remote Fedora host is missing a security update.
File : fedora_2012-6344.nasl - Type : ACT_GATHER_INFO

Internal Sources (Detail)

SourceUrl
CONFIRMhttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4
https://bugzilla.redhat.com/show_bug.cgi?id=814149
https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a1...
MLISThttp://www.openwall.com/lists/oss-security/2012/04/19/16
REDHAThttp://rhn.redhat.com/errata/RHSA-2012-0743.html
SECTRACKhttp://www.securitytracker.com/id?1027083
SECUNIAhttp://secunia.com/advisories/50732
UBUNTUhttp://www.ubuntu.com/usn/USN-1577-1
http://www.ubuntu.com/usn/USN-2036-1
http://www.ubuntu.com/usn/USN-2037-1

Alert History

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0
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DateInformations
2014-02-17 11:09:54
  • Multiple Updates
2014-01-14 13:20:09
  • Multiple Updates
2013-05-10 22:38:24
  • Multiple Updates
2013-04-19 13:20:09
  • Multiple Updates
2013-01-30 13:21:33
  • Multiple Updates
2013-01-24 13:22:23
  • Multiple Updates