{"id":"CVE-2012-2121","aliases":["DSA-2668-1","EUVD-2012-2123","GHSA-c72r-fqqv-r8jm","RHSA-2012:0676","RHSA-2012:0743","UBUNTU-CVE-2012-2121"],"status":"published","title":"The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the...","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.","severity":{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.00413,"percentile":0.35809,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2012-05-17T00:00:00Z","modified":"2026-06-28T10:06:15Z","affected":[{"source":"osv","ecosystem":"Debian:6.0","package":"linux-2.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.32-48squeeze3"}]}],"versions":["2.6.32-30","2.6.32-30+m68k.5","2.6.32-31","2.6.32-31~bpo50+1","2.6.32-32","2.6.32-33","2.6.32-34","2.6.32-34squeeze1","2.6.32-35","2.6.32-35squeeze1","2.6.32-35squeeze2","2.6.32-35~bpo50+1","2.6.32-36","2.6.32-37","2.6.32-38","2.6.32-39","2.6.32-39squeeze1","2.6.32-40","2.6.32-41","2.6.32-41squeeze2","2.6.32-42","2.6.32-43","2.6.32-44","2.6.32-45","2.6.32-46","2.6.32-46squeeze1","2.6.32-47","2.6.32-48","2.6.32-48squeeze1"],"bundled":36},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kmod-kvm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kmod-kvm-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kvm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kvm-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kvm-qemu-img","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::client","package":"kvm-tools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kmod-kvm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kmod-kvm-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kvm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kvm-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kvm-qemu-img","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:rhel_virtualization:5::server","package":"kvm-tools","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:83-249.el5_8.4"}]}],"bundled":2},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-bootwrapper","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-ppc64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-s390x","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-220.23.1.el6"}]}],"bundled":9}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://secunia.com/advisories/50732","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"http://rhn.redhat.com/errata/RHSA-2012-0743.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://www.securitytracker.com/id?1027083","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2012/04/19/16","tags":["mailing-list","x_refsource_MLIST","x_transferred","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=814149","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"https://github.com/torvalds/linux/commit/09ca8e1173bcb12e2a449698c9ae3b86a8a10195","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.ubuntu.com/usn/USN-1577-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.4","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.ubuntu.com/usn/USN-2036-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://www.ubuntu.com/usn/USN-2037-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://rhn.redhat.com/errata/RHSA-2012-0676.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2121","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c72r-fqqv-r8jm"},{"url":"https://access.redhat.com/errata/RHSA-2012:0676","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=808199","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0676.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-1601","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-1601","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-1601","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2121","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2121","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2012:0743","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#important","tags":["article"]},{"url":"https://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.2_Technical_Notes/kernel.html#RHSA-2012-0743","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=772894","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=803793","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=806722","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=814278","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=814657","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=816151","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=816226","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=816289","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=818504","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=818505","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=819614","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=822754","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=822821","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0743.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-0044","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-0044","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-0044","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-1179","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-1179","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-1179","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2119","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2119","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2119","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2123","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2123","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2123","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2136","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2136","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2136","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2137","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2137","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2137","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2372","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2372","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2372","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2373","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2373","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2373","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2012-2121","tags":["report"]},{"url":"https://lkml.org/lkml/2012/4/11/248","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-1457-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1470-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1471-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1472-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1473-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1474-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1476-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1260-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1577-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-2036-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-2037-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2012-2121","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.","status":"published","published":"2012-05-17T10:00:00Z","modified":"2024-08-06T19:26:08.276Z","updated_at":"2026-11-02T14:34:50.263482Z"}],"euvd":[{"id":"EUVD-2012-2123","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.","status":"published","published":"2012-05-17T10:00:00Z","modified":"2024-08-06T19:26:08Z","updated_at":"2026-11-03T01:56:15.412642Z"}],"ghsa":[{"id":"GHSA-c72r-fqqv-r8jm","title":"The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the...","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.","status":"published","published":"2022-05-14T04:00:04Z","modified":"2023-02-03T05:00:58Z","updated_at":"2026-11-02T14:52:53.034472Z"}],"nvd":[{"id":"CVE-2012-2121","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.","status":"published","published":"2012-05-17T11:00:38.21Z","modified":"2026-06-16T23:41:01.99Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:14.336529Z"}],"osv":[{"id":"DSA-2668-1","title":"linux-2.6 - several","status":"published","published":"2013-05-14T00:00:00Z","modified":"2026-03-09T01:20:39.224521Z","updated_at":"2026-11-02T15:46:15.489951Z"},{"id":"RHSA-2012:0676","title":"Red Hat Security Advisory: kvm security and bug fix update","status":"published","published":"2024-09-15T19:50:47Z","modified":"2026-06-28T10:06:08Z","updated_at":"2026-11-02T15:53:01.495018Z"},{"id":"RHSA-2012:0743","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-15T19:57:36Z","modified":"2026-06-28T10:06:15Z","updated_at":"2026-11-02T15:53:01.495018Z"},{"id":"UBUNTU-CVE-2012-2121","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.","status":"withdrawn","published":"2012-05-17T00:00:00Z","modified":"2026-02-04T03:56:37.903261Z","updated_at":"2026-11-02T15:54:06.395274Z"}]}}