{
    "id": "CVE-2017-17790",
    "published": "2017-12-20 09:29:01",
    "last_modified": "2026-06-17 01:11:39",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.0",
    "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-74",
    "description": "The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.",
    "epss_score": "0.05913",
    "epss_percentile": "0.93036",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-06 18:17:15",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "ruby-lang",
            "product": "ruby"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://access.redhat.com/errata/RHSA-2018:0378",
        "https://access.redhat.com/errata/RHSA-2018:0583",
        "https://access.redhat.com/errata/RHSA-2018:0584",
        "https://access.redhat.com/errata/RHSA-2018:0585",
        "https://github.com/ruby/ruby/pull/1777",
        "https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html",
        "https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html",
        "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html",
        "https://www.debian.org/security/2018/dsa-4259",
        "https://access.redhat.com/errata/RHSA-2018:0378",
        "https://access.redhat.com/errata/RHSA-2018:0583",
        "https://access.redhat.com/errata/RHSA-2018:0584",
        "https://access.redhat.com/errata/RHSA-2018:0585",
        "https://github.com/ruby/ruby/pull/1777",
        "https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html",
        "https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html",
        "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html",
        "https://www.debian.org/security/2018/dsa-4259"
    ]
}