Executive Summary

Informations
Name CVE-2012-2121 First vendor Publication 2012-05-17
Vendor Cve Last vendor Modification 2018-01-05

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None 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

% Id Name
100 % CWE-264 Permissions, 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:
Definition Id: oval:org.mitre.oval:def:27475
 
Oval ID: oval:org.mitre.oval:def:27475
Title: DEPRECATED: ELSA-2012-0676 -- kvm security and bug fix update (moderate)
Description: [kvm-83-249.0.1.el5_8.4] - Added kvm-add-oracle-workaround-for-libvirt-bug.patch - Added kvm-Introduce-oel-machine-type.patch [kvm-83-249.el5_8.4] - kvm-kernel-KVM-unmap-pages-from-the-iommu-when-slots-are-remove.patch [bz#814151] - CVE: CVE-2012-2121 - Resolves: bz#814151 (CVE-2012-2121 kvm: device assignment page leak [rhel-5.8]) [kvm-83-249.el5_8.3] - kvm-fix-l1_map-buffer-overflow.patch [bz#816207] - Resolves: bz#816207 (qemu-kvm segfault in tb_invalidate_phys_page_range()) [kvm-83-249.el5_8.2] - kvm-kernel-KVM-Ensure-all-vcpus-are-consistent-with-in-kernel-i.patch [bz#808205] - Resolves: bz#808205 (CVE-2012-1601 kernel: kvm: irqchip_in_kernel() and vcpu->arch.apic inconsistency [rhel-5.8.z]) [kvm-83-249.el5_8.1] - kvm-posix-aio-compat-fix-thread-accounting-leak.patch [bz#802429] - Resolves: bz#802429 ([RHEL5.8 Snapshot2]RHEL5.8 KVMGuest hung during Guest OS booting up)
Family: unix Class: patch
Reference(s): ELSA-2012-0676
CVE-2012-1601
CVE-2012-2121
 Version: 4
Platform(s): Oracle Linux 5
 Product(s): kvm
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1623

OpenVAS Exploits

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

Nessus® Vulnerability Scanner

Date Description
2014-11-26 Name : The remote OracleVM host is missing one or more security updates.
File : oraclevm_OVMSA-2012-0042.nasl - Type : ACT_GATHER_INFO
2013-12-04 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2037-1.nasl - Type : ACT_GATHER_INFO
2013-12-04 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2036-1.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-2020.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2012-2021.nasl - Type : ACT_GATHER_INFO
2013-05-15 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2668.nasl - Type : ACT_GATHER_INFO
2013-01-24 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2012-09-24 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1577-1.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120521_kvm_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20120618_kernel_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2012-06-21 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2012-06-19 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2012-0743.nasl - Type : ACT_GATHER_INFO
2012-06-18 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1476-1.nasl - Type : ACT_GATHER_INFO
2012-06-14 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1473-1.nasl - Type : ACT_GATHER_INFO
2012-06-14 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1474-1.nasl - Type : ACT_GATHER_INFO
2012-06-13 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1470-1.nasl - Type : ACT_GATHER_INFO
2012-06-13 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1471-1.nasl - Type : ACT_GATHER_INFO
2012-06-13 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1472-1.nasl - Type : ACT_GATHER_INFO
2012-06-01 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1457-1.nasl - Type : ACT_GATHER_INFO
2012-05-22 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2012-0676.nasl - Type : ACT_GATHER_INFO
2012-04-26 Name : The remote Fedora host is missing a security update.
File : fedora_2012-6406.nasl - Type : ACT_GATHER_INFO
2012-04-25 Name : The remote Fedora host is missing a security update.
File : fedora_2012-6386.nasl - Type : ACT_GATHER_INFO
2012-04-24 Name : The remote Fedora host is missing a security update.
File : fedora_2012-6344.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
CONFIRM http://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...
MLIST http://www.openwall.com/lists/oss-security/2012/04/19/16
REDHAT http://rhn.redhat.com/errata/RHSA-2012-0676.html
http://rhn.redhat.com/errata/RHSA-2012-0743.html
SECTRACK http://www.securitytracker.com/id?1027083
SECUNIA http://secunia.com/advisories/50732
UBUNTU http://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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Date Informations
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2020-05-23 01:48:40
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2019-01-25 12:04:39
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2016-04-26 21:46:16
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2014-11-27 13:28:03
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2014-02-17 11:09:54
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2013-05-10 22:38:24
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2013-01-30 13:21:33
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2013-01-24 13:22:23
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