{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2012-2100",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2",
                "refsource": "MISC",
                "name": "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2"
            },
            {
                "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b",
                "refsource": "MISC",
                "name": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d50f2ab6f050311dbf7b8f5501b25f0bf64a439b"
            },
            {
                "url": "http://rhn.redhat.com/errata/RHSA-2012-1445.html",
                "refsource": "MISC",
                "name": "http://rhn.redhat.com/errata/RHSA-2012-1445.html"
            },
            {
                "url": "http://rhn.redhat.com/errata/RHSA-2012-1580.html",
                "refsource": "MISC",
                "name": "http://rhn.redhat.com/errata/RHSA-2012-1580.html"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2012/04/12/11",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2012/04/12/11"
            },
            {
                "url": "http://www.securityfocus.com/bid/53414",
                "refsource": "MISC",
                "name": "http://www.securityfocus.com/bid/53414"
            },
            {
                "url": "https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b",
                "refsource": "MISC",
                "name": "https://github.com/torvalds/linux/commit/d50f2ab6f050311dbf7b8f5501b25f0bf64a439b"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=809687",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=809687"
            }
        ]
    }
}