USN-3855-1 (UBUNTU-CVE-2018-16864)

Vulnerability from osv_ubuntu – Published: 2019-01-11 14:08 – Updated: 2026-04-22 07:36 – Source website
VLAI
Summary
systemd vulnerabilities
Details

It was discovered that systemd-journald allocated variable-length buffers for certain message fields on the stack. A local attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2018-16864)

It was discovered that systemd-journald allocated variable-length arrays of objects representing message fields on the stack. A local attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2018-16865)

An out-of-bounds read was discovered in systemd-journald. A local attacker could potentially exploit this to obtain sensitive information and bypass ASLR protections. (CVE-2018-16866)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2018-16864",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
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                  "score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                  "type": "CVSS_V3"
                },
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            },
            {
              "id": "CVE-2018-16865",
              "severity": [
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                  "type": "CVSS_V3"
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                }
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            },
            {
              "id": "CVE-2018-16866",
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      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "systemd",
        "purl": "pkg:deb/ubuntu/systemd@229-4ubuntu21.15?arch=source\u0026distro=xenial"
      },
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        }
      ],
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        "227-2ubuntu2",
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        "228-4ubuntu2",
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        "229-4ubuntu11",
        "229-4ubuntu12",
        "229-4ubuntu13",
        "229-4ubuntu16",
        "229-4ubuntu17",
        "229-4ubuntu19",
        "229-4ubuntu20",
        "229-4ubuntu21",
        "229-4ubuntu21.1",
        "229-4ubuntu21.2",
        "229-4ubuntu21.3",
        "229-4ubuntu21.4",
        "229-4ubuntu21.5",
        "229-4ubuntu21.6",
        "229-4ubuntu21.8",
        "229-4ubuntu21.9",
        "229-4ubuntu21.10"
      ]
    },
    {
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            {
              "id": "CVE-2018-16864",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2018-16865",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
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                {
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                },
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                  "score": "high",
                  "type": "Ubuntu"
                }
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            },
            {
              "id": "CVE-2018-16866",
              "severity": [
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                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
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                  "type": "CVSS_V3"
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                }
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            }
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          "ecosystem": "Ubuntu:18.04:LTS"
        }
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      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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            "binary_name": "libnss-myhostname",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libnss-mymachines",
            "binary_version": "237-3ubuntu10.11"
          },
          {
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            "binary_version": "237-3ubuntu10.11"
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            "binary_version": "237-3ubuntu10.11"
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            "binary_version": "237-3ubuntu10.11"
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            "binary_version": "237-3ubuntu10.11"
          },
          {
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            "binary_version": "237-3ubuntu10.11"
          },
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            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-journal-remote",
            "binary_version": "237-3ubuntu10.11"
          },
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          },
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            "binary_version": "237-3ubuntu10.11"
          },
          {
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            "binary_version": "237-3ubuntu10.11"
          }
        ]
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      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "systemd",
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      },
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            {
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            }
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          "type": "ECOSYSTEM"
        }
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      "versions": [
        "234-2ubuntu12",
        "235-2ubuntu3",
        "235-3ubuntu2",
        "235-3ubuntu3",
        "237-3ubuntu3",
        "237-3ubuntu4",
        "237-3ubuntu6",
        "237-3ubuntu7",
        "237-3ubuntu8",
        "237-3ubuntu10",
        "237-3ubuntu10.2",
        "237-3ubuntu10.3",
        "237-3ubuntu10.4",
        "237-3ubuntu10.6",
        "237-3ubuntu10.9"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that systemd-journald allocated variable-length buffers\nfor certain message fields on the stack. A local attacker could\npotentially exploit this to cause a denial of service, or execute\narbitrary code. (CVE-2018-16864)\n\nIt was discovered that systemd-journald allocated variable-length arrays\nof objects representing message fields on the stack. A local attacker\ncould potentially exploit this to cause a denial of service, or execute\narbitrary code. (CVE-2018-16865)\n\nAn out-of-bounds read was discovered in systemd-journald. A local\nattacker could potentially exploit this to obtain sensitive information\nand bypass ASLR protections. (CVE-2018-16866)\n",
  "id": "USN-3855-1",
  "modified": "2026-04-22T07:36:36Z",
  "published": "2019-01-11T14:08:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3855-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16864"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16865"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16866"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "systemd vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2018-16864",
    "UBUNTU-CVE-2018-16865",
    "UBUNTU-CVE-2018-16866"
  ]
}



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