Vulnerability-Lookup

CVE-2018-16866 (GCVE-0-2018-16866)

Vulnerability from cvelistv5 – Published: 2019-01-11 19:00 – Updated: 2025-06-09 15:41

Summary

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.

Severity

4.3 (Medium)


                        
                          CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-06-09 15:41 UTC

CWE

Assigner

redhat CNA under the redhat root

CNA scorecard B 81/100 over 996 records in the last 180 days details

References

14 references

URL	Tags
https://www.debian.org/security/2019/dsa-4367	vendor-advisoryx_refsource_DEBIAN
https://security.netapp.com/advisory/ntap-2019011…	x_refsource_CONFIRM
https://www.qualys.com/2019/01/09/system-down/sys…	x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://usn.ubuntu.com/3855-1/	vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/106527	vdb-entryx_refsource_BID
https://security.gentoo.org/glsa/201903-07	vendor-advisoryx_refsource_GENTOO
http://www.openwall.com/lists/oss-security/2019/05/10/4	mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2019/May/25	mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/152841/Syste…	x_refsource_MISC
http://seclists.org/fulldisclosure/2019/May/21	mailing-listx_refsource_FULLDISC
https://access.redhat.com/errata/RHSA-2019:2091	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:3222	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2020:0593	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version	CPE status
The systemd Project	systemd	Affected: from v221 to v239	guessed

Date Public

2019-01-09 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T10:32:54.043Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "DSA-4367",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4367"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
          },
          {
            "name": "USN-3855-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3855-1/"
          },
          {
            "name": "106527",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/106527"
          },
          {
            "name": "GLSA-201903-07",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201903-07"
          },
          {
            "name": "[oss-security] 20190510 Re: System Down: A systemd-journald exploit",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
          },
          {
            "name": "20190513 Re: System Down: A systemd-journald exploit",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "https://seclists.org/bugtraq/2019/May/25"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
          },
          {
            "name": "20190513 Re: System Down: A systemd-journald exploit",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/May/21"
          },
          {
            "name": "RHSA-2019:2091",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2091"
          },
          {
            "name": "RHSA-2019:3222",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3222"
          },
          {
            "name": "RHSA-2020:0593",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0593"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2018-16866",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-06-09T15:41:29.041122Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-09T15:41:39.884Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "systemd",
          "vendor": "The systemd Project",
          "versions": [
            {
              "status": "affected",
              "version": "from v221 to v239"
            }
          ]
        }
      ],
      "datePublic": "2019-01-09T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
              "description": "CWE-125",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-25T14:06:20.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "DSA-4367",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2019/dsa-4367"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
        },
        {
          "name": "USN-3855-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3855-1/"
        },
        {
          "name": "106527",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/106527"
        },
        {
          "name": "GLSA-201903-07",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201903-07"
        },
        {
          "name": "[oss-security] 20190510 Re: System Down: A systemd-journald exploit",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
        },
        {
          "name": "20190513 Re: System Down: A systemd-journald exploit",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/May/25"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
        },
        {
          "name": "20190513 Re: System Down: A systemd-journald exploit",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2019/May/21"
        },
        {
          "name": "RHSA-2019:2091",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2091"
        },
        {
          "name": "RHSA-2019:3222",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:3222"
        },
        {
          "name": "RHSA-2020:0593",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2020:0593"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2018-16866",
    "datePublished": "2019-01-11T19:00:00.000Z",
    "dateReserved": "2018-09-11T00:00:00.000Z",
    "dateUpdated": "2025-06-09T15:41:39.884Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2018-16866",
      "date": "2026-10-14",
      "epss": "0.01051",
      "percentile": "0.63569"
    },
    "microsoft_vex": {
      "current_release_date": "2020-08-18T00:00:00.000Z",
      "cve": "CVE-2018-16866",
      "id": "msrc_CVE-2018-16866",
      "initial_release_date": "2019-01-02T00:00:00.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.",
      "url": "https://msrc.microsoft.com/csaf/vex/2019/msrc_cve-2018-16866.json",
      "version": "1"
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "026806D8-B8D6-4C1C-8E1F-32096D38C937",
                    "versionEndIncluding": "239",
                    "versionStartIncluding": "221",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                    "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                    "matchCriteriaId": "07C312A0-CD2C-4B9C-B064-6409B25C278F",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:netapp:active_iq_performance_analytics_services:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "83077160-BB98-408B-81F0-8EF9E566BF28",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:netapp:element_software:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FD53FA62-3E99-4D0B-8C62-4517F5CB8DE9",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5F6FA12B-504C-4DBF-A32E-0548557AA2ED",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_compute_node_eus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "35A9FD70-E9CA-43AF-A453-E41EAB430E7F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_\\(structure_a\\):7_s390x:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6207D51C-883B-4B65-B9BF-408197839BE5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B7614783-C95A-4CBC-81D9-21A044001B6E",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1CDCFF34-6F1D-45A1-BE37-6A0E17B04801",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian_eus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "83D5DE4F-4616-488D-ABA8-FD608784237E",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B4A684C7-88FD-43C4-9BDB-AE337FCBD0AB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "656C4506-ECDD-44D7-BFC7-35B1A3E33DF2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "37CE1DC7-72C5-483C-8921-0B462C8284D1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D99A687E-EAE6-417E-A88E-D0082BC194CD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C81C5D4E-3CAD-43CE-82BC-B0619CA3A74A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "57B5CF5A-D48E-4AD0-91E2-F5BDD44B7A66",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D5F7E11E-FB34-4467-8919-2B6BEAABF665",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B76AA310-FEC7-497F-AF04-C3EC1E76C4CC",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8C7E9628-0915-4C49-8929-F5E060A20CBB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_update_services_for_sap_solutions:7.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5C450C83-695F-4408-8B4F-0E7D6DDAE345",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable."
          },
          {
            "lang": "es",
            "value": "Se ha descubierto una lectura fuera de l\u00edmites en systemd-journald en la forma en la que analiza mensajes de registro que terminan con dos puntos \":\". Un atacante local puede emplear este error para divulgar datos de la memoria del proceso. Son vulnerables las versiones desde la v221 hasta la v239."
          }
        ],
        "id": "CVE-2018-16866",
        "lastModified": "2024-11-21T03:53:28.947",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "LOW",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 2.1,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV30": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.0"
              },
              "exploitabilityScore": 2.8,
              "impactScore": 1.4,
              "source": "secalert@redhat.com",
              "type": "Secondary"
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 3.3,
                "baseSeverity": "LOW",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2019-01-11T19:29:00.233",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/May/21"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/106527"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2091"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3222"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0593"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://seclists.org/bugtraq/2019/May/25"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201903-07"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3855-1/"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4367"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://seclists.org/fulldisclosure/2019/May/21"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/106527"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:2091"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:3222"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2020:0593"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://seclists.org/bugtraq/2019/May/25"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.gentoo.org/glsa/201903-07"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://usn.ubuntu.com/3855-1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2019/dsa-4367"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Exploit",
              "Third Party Advisory"
            ],
            "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              },
              {
                "lang": "en",
                "value": "CWE-200"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Secondary"
          },
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-27T02:29:36+00:00",
      "cve": "CVE-2018-16866",
      "id": "CVE-2018-16866",
      "initial_release_date": "2018-01-01T00:00:00+00:00",
      "product_status:fixed": "417",
      "product_status:known_affected": "4",
      "product_status:known_not_affected": "9",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "systemd: out-of-bounds read when parsing a crafted syslog message",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-16866.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-05T10:32:54.043Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "name": "DSA-4367",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_DEBIAN",
                  "x_transferred"
                ],
                "url": "https://www.debian.org/security/2019/dsa-4367"
              },
              {
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
              },
              {
                "tags": [
                  "x_refsource_CONFIRM",
                  "x_transferred"
                ],
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
              },
              {
                "name": "USN-3855-1",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_UBUNTU",
                  "x_transferred"
                ],
                "url": "https://usn.ubuntu.com/3855-1/"
              },
              {
                "name": "106527",
                "tags": [
                  "vdb-entry",
                  "x_refsource_BID",
                  "x_transferred"
                ],
                "url": "http://www.securityfocus.com/bid/106527"
              },
              {
                "name": "GLSA-201903-07",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_GENTOO",
                  "x_transferred"
                ],
                "url": "https://security.gentoo.org/glsa/201903-07"
              },
              {
                "name": "[oss-security] 20190510 Re: System Down: A systemd-journald exploit",
                "tags": [
                  "mailing-list",
                  "x_refsource_MLIST",
                  "x_transferred"
                ],
                "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
              },
              {
                "name": "20190513 Re: System Down: A systemd-journald exploit",
                "tags": [
                  "mailing-list",
                  "x_refsource_BUGTRAQ",
                  "x_transferred"
                ],
                "url": "https://seclists.org/bugtraq/2019/May/25"
              },
              {
                "tags": [
                  "x_refsource_MISC",
                  "x_transferred"
                ],
                "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
              },
              {
                "name": "20190513 Re: System Down: A systemd-journald exploit",
                "tags": [
                  "mailing-list",
                  "x_refsource_FULLDISC",
                  "x_transferred"
                ],
                "url": "http://seclists.org/fulldisclosure/2019/May/21"
              },
              {
                "name": "RHSA-2019:2091",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT",
                  "x_transferred"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2019:2091"
              },
              {
                "name": "RHSA-2019:3222",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT",
                  "x_transferred"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2019:3222"
              },
              {
                "name": "RHSA-2020:0593",
                "tags": [
                  "vendor-advisory",
                  "x_refsource_REDHAT",
                  "x_transferred"
                ],
                "url": "https://access.redhat.com/errata/RHSA-2020:0593"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2018-16866",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2025-06-09T15:41:29.041122Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2025-06-09T15:41:34.412Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "product": "systemd",
              "vendor": "The systemd Project",
              "versions": [
                {
                  "status": "affected",
                  "version": "from v221 to v239"
                }
              ]
            }
          ],
          "datePublic": "2019-01-09T00:00:00.000Z",
          "descriptions": [
            {
              "lang": "en",
              "value": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable."
            }
          ],
          "metrics": [
            {
              "cvssV3_0": {
                "attackComplexity": "LOW",
                "attackVector": "ADJACENT_NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                "version": "3.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-125",
                  "description": "CWE-125",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-200",
                  "description": "CWE-200",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2020-02-25T14:06:20.000Z",
            "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
            "shortName": "redhat"
          },
          "references": [
            {
              "name": "DSA-4367",
              "tags": [
                "vendor-advisory",
                "x_refsource_DEBIAN"
              ],
              "url": "https://www.debian.org/security/2019/dsa-4367"
            },
            {
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://security.netapp.com/advisory/ntap-20190117-0001/"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://www.qualys.com/2019/01/09/system-down/system-down.txt"
            },
            {
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16866"
            },
            {
              "name": "USN-3855-1",
              "tags": [
                "vendor-advisory",
                "x_refsource_UBUNTU"
              ],
              "url": "https://usn.ubuntu.com/3855-1/"
            },
            {
              "name": "106527",
              "tags": [
                "vdb-entry",
                "x_refsource_BID"
              ],
              "url": "http://www.securityfocus.com/bid/106527"
            },
            {
              "name": "GLSA-201903-07",
              "tags": [
                "vendor-advisory",
                "x_refsource_GENTOO"
              ],
              "url": "https://security.gentoo.org/glsa/201903-07"
            },
            {
              "name": "[oss-security] 20190510 Re: System Down: A systemd-journald exploit",
              "tags": [
                "mailing-list",
                "x_refsource_MLIST"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2019/05/10/4"
            },
            {
              "name": "20190513 Re: System Down: A systemd-journald exploit",
              "tags": [
                "mailing-list",
                "x_refsource_BUGTRAQ"
              ],
              "url": "https://seclists.org/bugtraq/2019/May/25"
            },
            {
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "http://packetstormsecurity.com/files/152841/System-Down-A-systemd-journald-Exploit.html"
            },
            {
              "name": "20190513 Re: System Down: A systemd-journald exploit",
              "tags": [
                "mailing-list",
                "x_refsource_FULLDISC"
              ],
              "url": "http://seclists.org/fulldisclosure/2019/May/21"
            },
            {
              "name": "RHSA-2019:2091",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:2091"
            },
            {
              "name": "RHSA-2019:3222",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:3222"
            },
            {
              "name": "RHSA-2020:0593",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2020:0593"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2018-16866",
        "datePublished": "2019-01-11T19:00:00.000Z",
        "dateReserved": "2018-09-11T00:00:00.000Z",
        "dateUpdated": "2025-06-09T15:41:39.884Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

RHSA-2020:1264

Vulnerability from csaf_redhat - Published: 2020-04-01 08:38 - Updated: 2026-06-27 02:29

Summary

Red Hat Security Advisory: systemd security and bug fix update

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2018-16866.

CVE-2018-16866

An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ':'. A local attacker can use this flaw to disclose process memory data.

4.3 (Medium)


                
                  CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Fixed: 90 products

https://access.redhat.com/errata/RHSA-2020:1264

Open the full advisory

SUSE-SU-2019:0135-1

Vulnerability from csaf_suse - Published: 2019-01-21 12:54 - Updated: 2026-09-20 13:03

Summary

Security update for systemd

Severity

Moderate

Scope

3 vulnerabilities in this advisory, including CVE-2018-16866.

CVE-2018-16866

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Recommended: 235 products

Open the full advisory

SUSE-SU-2019:0137-1

Vulnerability from csaf_suse - Published: 2019-01-21 14:52 - Updated: 2026-09-20 13:03

Summary

Security update for systemd

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2018-16866.

CVE-2018-16866

3.3 (Low)


                
                  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Recommended: 200 products

Open the full advisory

UBUNTU-CVE-2018-16866 (CVE-2018-16866)

Vulnerability from osv_ubuntu – Published: 2019-01-11 00:00 – Updated: 2026-04-22 07:38 – Source website

Details

Severity

3.3 (Low)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

4.3 (Medium)


                    
                      CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

3.3 (Low)


                    
                      CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2018-16866	REPORT
	https://ubuntu.com/security/notices/USN-3855-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2018-16866	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-myhostname",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "libnss-mymachines",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "libnss-resolve",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "libpam-systemd",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "libsystemd0",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "libudev1",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "systemd",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "systemd-container",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "systemd-coredump",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "systemd-journal-remote",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "systemd-sysv",
            "binary_version": "229-4ubuntu21.15"
          },
          {
            "binary_name": "udev",
            "binary_version": "229-4ubuntu21.15"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "systemd",
        "purl": "pkg:deb/ubuntu/systemd@229-4ubuntu21.15?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "229-4ubuntu21.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "225-1ubuntu9",
        "227-2ubuntu1",
        "227-2ubuntu2",
        "228-1ubuntu2",
        "228-2ubuntu1",
        "228-2ubuntu2",
        "228-3ubuntu1",
        "228-4ubuntu1",
        "228-4ubuntu2",
        "228-5ubuntu1",
        "228-5ubuntu2",
        "228-5ubuntu3",
        "228-6ubuntu1",
        "229-1ubuntu2",
        "229-1ubuntu4",
        "229-2ubuntu1",
        "229-3ubuntu1",
        "229-3ubuntu2",
        "229-4ubuntu1",
        "229-4ubuntu4",
        "229-4ubuntu5",
        "229-4ubuntu6",
        "229-4ubuntu7",
        "229-4ubuntu8",
        "229-4ubuntu10",
        "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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnss-myhostname",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libnss-mymachines",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libnss-resolve",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libnss-systemd",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libpam-systemd",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libsystemd0",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "libudev1",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-container",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-coredump",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-journal-remote",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-sysv",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "systemd-tests",
            "binary_version": "237-3ubuntu10.11"
          },
          {
            "binary_name": "udev",
            "binary_version": "237-3ubuntu10.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "systemd",
        "purl": "pkg:deb/ubuntu/systemd@237-3ubuntu10.11?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "237-3ubuntu10.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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": "An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon \u0027:\u0027. A local attacker can use this flaw to disclose process memory data. Versions from v221 to v239 are vulnerable.",
  "id": "UBUNTU-CVE-2018-16866",
  "modified": "2026-04-22T07:38:43Z",
  "published": "2019-01-11T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-16866"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3855-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-16866"
    }
  ],
  "related": [
    "USN-3855-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-16866"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2018-16866 (GCVE-0-2018-16866)

RHSA-2020:1264

SUSE-SU-2019:0135-1

SUSE-SU-2019:0137-1

UBUNTU-CVE-2018-16866 (CVE-2018-16866)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour