{
    "id": "CVE-2018-1000140",
    "published": "2018-03-23 21:29:00",
    "last_modified": "2026-06-17 01:32:30",
    "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-787",
    "description": "rsyslog librelp version 1.2.14 and earlier contains a Buffer Overflow vulnerability in the checking of x509 certificates from a peer that can result in Remote code execution. This attack appear to be exploitable a remote attacker that can connect to rsyslog and trigger a stack buffer overflow by sending a specially crafted x509 certificate.",
    "epss_score": "0.09342",
    "epss_percentile": "0.95251",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-05 18:17:17",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.8), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "canonical",
            "product": "ubuntu_linux"
        },
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_aus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_eus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server_tus"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        },
        {
            "vendor": "rsyslog",
            "product": "librelp"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://packetstormsecurity.com/files/172829/librelp-Remote-Code-Execution.html",
        "https://access.redhat.com/errata/RHSA-2018:1223",
        "https://access.redhat.com/errata/RHSA-2018:1225",
        "https://access.redhat.com/errata/RHSA-2018:1701",
        "https://access.redhat.com/errata/RHSA-2018:1702",
        "https://access.redhat.com/errata/RHSA-2018:1703",
        "https://access.redhat.com/errata/RHSA-2018:1704",
        "https://access.redhat.com/errata/RHSA-2018:1707",
        "https://github.com/rsyslog/librelp/blob/532aa362f0f7a8d037505b0a27a1df452f9bac9e/src/tcp.c#L1205",
        "https://lgtm.com/rules/1505913226124/",
        "https://security.gentoo.org/glsa/201804-21",
        "https://usn.ubuntu.com/3612-1/",
        "https://www.debian.org/security/2018/dsa-4151",
        "http://packetstormsecurity.com/files/172829/librelp-Remote-Code-Execution.html",
        "https://access.redhat.com/errata/RHSA-2018:1223",
        "https://access.redhat.com/errata/RHSA-2018:1225",
        "https://access.redhat.com/errata/RHSA-2018:1701",
        "https://access.redhat.com/errata/RHSA-2018:1702",
        "https://access.redhat.com/errata/RHSA-2018:1703",
        "https://access.redhat.com/errata/RHSA-2018:1704",
        "https://access.redhat.com/errata/RHSA-2018:1707",
        "https://github.com/rsyslog/librelp/blob/532aa362f0f7a8d037505b0a27a1df452f9bac9e/src/tcp.c#L1205",
        "https://lgtm.com/rules/1505913226124/",
        "https://security.gentoo.org/glsa/201804-21",
        "https://usn.ubuntu.com/3612-1/"
    ]
}