gsd-2018-16888
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.
Aliases
Aliases
CVE-2018-16888


To clipboard 

{
   GSD: {
      alias: "CVE-2018-16888",
      description: "It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.",
      id: "GSD-2018-16888",
      references: [
         "https://www.suse.com/security/cve/CVE-2018-16888.html",
         "https://access.redhat.com/errata/RHBA-2020:0547",
         "https://access.redhat.com/errata/RHSA-2019:2091",
         "https://ubuntu.com/security/CVE-2018-16888",
         "https://linux.oracle.com/cve/CVE-2018-16888.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2018-16888",
         ],
         details: "It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.",
         id: "GSD-2018-16888",
         modified: "2023-12-13T01:22:26.075213Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "secalert@redhat.com",
            ID: "CVE-2018-16888",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "systemd",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "v237",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "The systemd Project",
                  },
               ],
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         },
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         data_version: "4.0",
         description: {
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                  lang: "eng",
                  value: "It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.",
               },
            ],
         },
         impact: {
            cvss: [
               [
                  {
                     vectorString: "4.4/CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H",
                     version: "3.0",
                  },
               ],
            ],
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         problemtype: {
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                        value: "CWE-250",
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         },
         references: {
            reference_data: [
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                  name: "https://security.netapp.com/advisory/ntap-20190307-0007/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20190307-0007/",
               },
               {
                  name: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888",
                  refsource: "CONFIRM",
                  url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888",
               },
               {
                  name: "RHSA-2019:2091",
                  refsource: "REDHAT",
                  url: "https://access.redhat.com/errata/RHSA-2019:2091",
               },
               {
                  name: "[cassandra-user] 20190809 cassandra does not start with new systemd version",
                  refsource: "MLIST",
                  url: "https://lists.apache.org/thread.html/5960a34a524848cd722fd7ab7e2227eac10107b0f90d9d1e9c3caa74@%3Cuser.cassandra.apache.org%3E",
               },
               {
                  name: "USN-4269-1",
                  refsource: "UBUNTU",
                  url: "https://usn.ubuntu.com/4269-1/",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "237",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
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                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:active_iq_performance_analytics_services:-:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "secalert@redhat.com",
               ID: "CVE-2018-16888",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "It was discovered systemd does not correctly check the content of PIDFile files before using it to kill processes. When a service is run from an unprivileged user (e.g. User field set in the service file), a local attacker who is able to write to the PIDFile of the mentioned service may use this flaw to trick systemd into killing other services and/or privileged processes. Versions before v237 are vulnerable.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-269",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888",
                     refsource: "CONFIRM",
                     tags: [
                        "Issue Tracking",
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16888",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20190307-0007/",
                     refsource: "CONFIRM",
                     tags: [
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                     ],
                     url: "https://security.netapp.com/advisory/ntap-20190307-0007/",
                  },
                  {
                     name: "RHSA-2019:2091",
                     refsource: "REDHAT",
                     tags: [
                        "Third Party Advisory",
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                     url: "https://access.redhat.com/errata/RHSA-2019:2091",
                  },
                  {
                     name: "[cassandra-user] 20190809 cassandra does not start with new systemd version",
                     refsource: "MLIST",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://lists.apache.org/thread.html/5960a34a524848cd722fd7ab7e2227eac10107b0f90d9d1e9c3caa74@%3Cuser.cassandra.apache.org%3E",
                  },
                  {
                     name: "USN-4269-1",
                     refsource: "UBUNTU",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://usn.ubuntu.com/4269-1/",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "MEDIUM",
                  accessVector: "LOCAL",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 1.9,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:L/AC:M/Au:N/C:N/I:N/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 3.4,
               impactScore: 2.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "LOW",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "HIGH",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 4.7,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "LOW",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 1,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2022-01-31T18:37Z",
         publishedDate: "2019-01-14T22:29Z",
      },
   },
}


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