{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2018-1093",
        "ASSIGNER": "secalert@redhat.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "out-of-bounds read"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "n/a",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux kernel through version 4.15",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "Linux kernel through version 4.15"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://usn.ubuntu.com/3754-1/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3754-1/"
            },
            {
                "url": "https://usn.ubuntu.com/3752-1/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3752-1/"
            },
            {
                "url": "https://usn.ubuntu.com/3752-2/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3752-2/"
            },
            {
                "url": "https://usn.ubuntu.com/3752-3/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3752-3/"
            },
            {
                "url": "http://openwall.com/lists/oss-security/2018/03/29/1",
                "refsource": "MISC",
                "name": "http://openwall.com/lists/oss-security/2018/03/29/1"
            },
            {
                "url": "https://bugzilla.kernel.org/show_bug.cgi?id=199181",
                "refsource": "MISC",
                "name": "https://bugzilla.kernel.org/show_bug.cgi?id=199181"
            },
            {
                "url": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f",
                "refsource": "MISC",
                "name": "https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f"
            },
            {
                "url": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html",
                "refsource": "MISC",
                "name": "https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html"
            },
            {
                "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html",
                "refsource": "MISC",
                "name": "https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html"
            },
            {
                "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html",
                "refsource": "MISC",
                "name": "https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html"
            },
            {
                "url": "https://usn.ubuntu.com/3676-1/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3676-1/"
            },
            {
                "url": "https://usn.ubuntu.com/3676-2/",
                "refsource": "MISC",
                "name": "https://usn.ubuntu.com/3676-2/"
            },
            {
                "url": "https://www.debian.org/security/2018/dsa-4188",
                "refsource": "MISC",
                "name": "https://www.debian.org/security/2018/dsa-4188"
            },
            {
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782",
                "refsource": "MISC",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1560782"
            }
        ]
    }
}