ubuntu-cve-2018-16881
Vulnerability from osv_ubuntu
Published
2019-01-25 18:29
Modified
2025-10-24 04:47
Summary
Details

A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.

Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rsyslog",
            "binary_version": "7.4.4-1ubuntu2.7"
          },
          {
            "binary_name": "rsyslog-gnutls",
            "binary_version": "7.4.4-1ubuntu2.7"
          },
          {
            "binary_name": "rsyslog-gssapi",
            "binary_version": "7.4.4-1ubuntu2.7"
          },
          {
            "binary_name": "rsyslog-mysql",
            "binary_version": "7.4.4-1ubuntu2.7"
          },
          {
            "binary_name": "rsyslog-pgsql",
            "binary_version": "7.4.4-1ubuntu2.7"
          },
          {
            "binary_name": "rsyslog-relp",
            "binary_version": "7.4.4-1ubuntu2.7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "rsyslog",
        "purl": "pkg:deb/ubuntu/rsyslog@7.4.4-1ubuntu2.7?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.8.11-2ubuntu4",
        "7.4.4-1ubuntu1",
        "7.4.4-1ubuntu2",
        "7.4.4-1ubuntu2.1",
        "7.4.4-1ubuntu2.3",
        "7.4.4-1ubuntu2.5",
        "7.4.4-1ubuntu2.6",
        "7.4.4-1ubuntu2.7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "rsyslog",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-elasticsearch",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-gnutls",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-gssapi",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-mysql",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-pgsql",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          },
          {
            "binary_name": "rsyslog-relp",
            "binary_version": "8.16.0-1ubuntu3.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "rsyslog",
        "purl": "pkg:deb/ubuntu/rsyslog@8.16.0-1ubuntu3.1+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.16.0-1ubuntu3.1+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.12.0-1ubuntu2",
        "8.12.0-1ubuntu3",
        "8.14.0-2ubuntu1",
        "8.14.0-2ubuntu2",
        "8.16.0-1ubuntu1",
        "8.16.0-1ubuntu2",
        "8.16.0-1ubuntu3",
        "8.16.0-1ubuntu3.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.",
  "id": "UBUNTU-CVE-2018-16881",
  "modified": "2025-10-24T04:47:12Z",
  "published": "2019-01-25T18:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16881"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16881"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rsyslog/rsyslog/commit/6c52f29d593a27f934a1871d40eed84ebde3f3a6"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5419-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-16881"
    }
  ],
  "related": [
    "USN-5419-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-16881"
  ]
}



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