{
    "id": "CVE-2017-1000253",
    "published": "2017-10-05 01:29:04",
    "last_modified": "2026-06-17 00:58:59",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-119",
    "description": "Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the \"gap\" between the stack and the binary.",
    "epss_score": "0.10695",
    "epss_percentile": "0.95667",
    "kev": 1,
    "kev_due": "2024-09-30",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:21:56",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2024-09-30."
    },
    "products": [
        {
            "vendor": "centos",
            "product": "centos"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2017-1000253",
        "date_added": "2024-09-09",
        "due_date": "2024-09-30",
        "vendor": "Linux",
        "product": "Kernel",
        "name": "Linux Kernel PIE Stack Buffer Corruption Vulnerability ",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "42887",
            "title": "Linux Kernel 3.10.0-514.21.2.el7.x86_64 / 3.10.0-514.26.1.el7.x86_64 (CentOS 7) - SUID Position Independent Executable 'PIE' Local Privilege Escalation",
            "date": "2017-09-26",
            "url": "https://www.exploit-db.com/exploits/42887"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/101010",
        "http://www.securitytracker.com/id/1039434",
        "https://access.redhat.com/errata/RHSA-2017:2793",
        "https://access.redhat.com/errata/RHSA-2017:2794",
        "https://access.redhat.com/errata/RHSA-2017:2795",
        "https://access.redhat.com/errata/RHSA-2017:2796",
        "https://access.redhat.com/errata/RHSA-2017:2797",
        "https://access.redhat.com/errata/RHSA-2017:2798",
        "https://access.redhat.com/errata/RHSA-2017:2799",
        "https://access.redhat.com/errata/RHSA-2017:2800",
        "https://access.redhat.com/errata/RHSA-2017:2801",
        "https://access.redhat.com/errata/RHSA-2017:2802",
        "https://www.qualys.com/2017/09/26/cve-2017-1000253/cve-2017-1000253.txt",
        "http://www.securityfocus.com/bid/101010",
        "http://www.securitytracker.com/id/1039434",
        "https://access.redhat.com/errata/RHSA-2017:2793",
        "https://access.redhat.com/errata/RHSA-2017:2794",
        "https://access.redhat.com/errata/RHSA-2017:2795",
        "https://access.redhat.com/errata/RHSA-2017:2796",
        "https://access.redhat.com/errata/RHSA-2017:2797",
        "https://access.redhat.com/errata/RHSA-2017:2798",
        "https://access.redhat.com/errata/RHSA-2017:2799",
        "https://access.redhat.com/errata/RHSA-2017:2800",
        "https://access.redhat.com/errata/RHSA-2017:2801",
        "https://access.redhat.com/errata/RHSA-2017:2802"
    ]
}