{
    "id": "CVE-2018-12617",
    "published": "2018-06-21 18:29:00",
    "last_modified": "2026-06-17 01:38:04",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
    "cwe": "CWE-190",
    "description": "qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.",
    "epss_score": "0.25054",
    "epss_percentile": "0.97855",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-28 18:17:19",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "qemu",
            "product": "qemu"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "44925",
            "title": "QEMU Guest Agent 2.12.50 - Denial of Service",
            "date": "2018-06-22",
            "url": "https://www.exploit-db.com/exploits/44925"
        }
    ],
    "refs_list": [
        "http://www.securityfocus.com/bid/104531",
        "https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6",
        "https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html",
        "https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html",
        "https://seclists.org/bugtraq/2019/May/76",
        "https://usn.ubuntu.com/3826-1/",
        "https://www.debian.org/security/2019/dsa-4454",
        "https://www.exploit-db.com/exploits/44925/",
        "http://www.securityfocus.com/bid/104531",
        "https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6",
        "https://lists.debian.org/debian-lts-announce/2019/02/msg00041.html",
        "https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg03385.html",
        "https://seclists.org/bugtraq/2019/May/76",
        "https://usn.ubuntu.com/3826-1/",
        "https://www.debian.org/security/2019/dsa-4454",
        "https://www.exploit-db.com/exploits/44925/"
    ]
}