{"id":"CVE-2012-2100","aliases":["BELL-CVE-2012-2100","EUVD-2012-2104","GHSA-cx5x-f2xm-m2cr","RHSA-2012:1445","RHSA-2012:1580","UBUNTU-CVE-2012-2100"],"status":"published","title":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86...","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).  NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","severity":{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02671,"percentile":0.85853,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2012-04-12T00:00:00Z","modified":"2026-06-28T10:07:10Z","fixes":[{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debuginfo-common","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-doc","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-headers","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debuginfo-common","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-doc","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-headers","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen-debuginfo","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]},{"ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen-devel","fixed_in":["0:2.6.18-308.20.1.el5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-PAE-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-debuginfo-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::client","package":"kernel-xen-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-PAE-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-debuginfo-common","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-kdump-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:5::server","package":"kernel-xen-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.18-308.20.1.el5"}]}]},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::client","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::computenode","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-bootwrapper","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-ppc64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-s390x","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"kernel-kdump-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::server","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debug-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo-common-i686","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-debuginfo-common-x86_64","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-devel","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-doc","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-firmware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"kernel-headers","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"python-perf-debuginfo","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5},{"source":"osv","ecosystem":"Red Hat:enterprise_linux:6::workstation","package":"python-perf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.6.32-279.19.1.el6"}]}],"bundled":5}],"products":[{"vendor":"linux","product":"linux_kernel"}],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2012-1580.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=809687","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://rhn.redhat.com/errata/RHSA-2012-1445.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred"]},{"url":"http://www.securityfocus.com/bid/53414","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2012/04/12/11","tags":["mailing-list","x_refsource_MLIST","x_transferred","report"]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2100","tags":["advisory"]},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b"},{"url":"https://github.com/advisories/GHSA-cx5x-f2xm-m2cr"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2012-2100","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2012:1445","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#low","tags":["article"]},{"url":"https://rhn.redhat.com/errata/RHSA-2010-0178.html","tags":["article"]},{"url":"https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/5.8_Technical_Notes/kernel.html#RHSA-2012-1445","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=859946","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1445.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2100","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2100","tags":["advisory","report"]},{"url":"https://access.redhat.com/errata/RHSA-2012:1580","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html#RHSA-2012-1580","tags":["article"]},{"url":"https://rhn.redhat.com/errata/RHSA-2012-0862.html","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=822869","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=871848","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=874835","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=875374","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=876549","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1580.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-2375","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-2375","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-2375","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-4444","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-4444","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-4444","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-4565","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-4565","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-4565","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2012-5517","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2012-5517","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-5517","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2012-2100","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-1405-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1388-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1404-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1389-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1432-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1440-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1458-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-1384-1","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2012-2100","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).  NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","status":"published","published":"2012-07-03T16:00:00Z","modified":"2024-08-06T19:26:07.782Z","updated_at":"2026-11-02T14:34:49.937255Z"}],"euvd":[{"id":"EUVD-2012-2104","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).  NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","status":"published","published":"2012-07-03T16:00:00Z","modified":"2024-08-06T19:26:07Z","updated_at":"2026-11-03T01:56:15.412642Z"}],"ghsa":[{"id":"GHSA-cx5x-f2xm-m2cr","title":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86...","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).  NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","status":"published","published":"2022-05-17T05:15:19Z","modified":"2023-02-21T05:06:37Z","updated_at":"2026-11-02T14:54:12.44657Z"}],"nvd":[{"id":"CVE-2012-2100","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value).  NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","status":"published","published":"2012-07-03T16:40:32.067Z","modified":"2026-06-16T23:40:59.403Z","cvss":[{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:14.774945Z"}],"osv":[{"id":"BELL-CVE-2012-2100","title":"CVE-2012-2100 does not affect BellSoft software","status":"withdrawn","published":"2012-07-03T16:40:00Z","modified":"2026-01-28T07:21:19.611634Z","cvss":[{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high"}],"updated_at":"2026-11-02T15:28:12.886815Z"},{"id":"RHSA-2012:1445","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-15T20:22:17Z","modified":"2026-06-26T12:20:53.511566927Z","updated_at":"2026-11-02T15:53:01.495018Z"},{"id":"RHSA-2012:1580","title":"Red Hat Security Advisory: kernel security, bug fix and enhancement update","status":"published","published":"2024-09-15T20:27:03Z","modified":"2026-06-28T10:07:10Z","updated_at":"2026-11-02T15:53:01.495018Z"},{"id":"UBUNTU-CVE-2012-2100","description":"The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.","status":"withdrawn","published":"2012-04-12T00:00:00Z","modified":"2026-02-04T02:17:31.180807Z","updated_at":"2026-11-02T15:54:06.395274Z"}]}}