gsd-2020-12049
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.
Aliases
Aliases
CVE-2020-12049


To clipboard 

{
   GSD: {
      alias: "CVE-2020-12049",
      description: "An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.",
      id: "GSD-2020-12049",
      references: [
         "https://www.suse.com/security/cve/CVE-2020-12049.html",
         "https://access.redhat.com/errata/RHSA-2020:3298",
         "https://access.redhat.com/errata/RHSA-2020:3044",
         "https://access.redhat.com/errata/RHSA-2020:3014",
         "https://access.redhat.com/errata/RHSA-2020:2894",
         "https://ubuntu.com/security/CVE-2020-12049",
         "https://advisories.mageia.org/CVE-2020-12049.html",
         "https://security.archlinux.org/CVE-2020-12049",
         "https://linux.oracle.com/cve/CVE-2020-12049.html",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2020-12049",
         ],
         details: "An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.",
         id: "GSD-2020-12049",
         modified: "2023-12-13T01:21:49.349438Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "cve@mitre.org",
            ID: "CVE-2020-12049",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "n/a",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "n/a",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "n/a",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "n/a",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://gitlab.freedesktop.org/dbus/dbus/-/issues/294",
                  refsource: "MISC",
                  url: "https://gitlab.freedesktop.org/dbus/dbus/-/issues/294",
               },
               {
                  name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16",
                  refsource: "MISC",
                  url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16",
               },
               {
                  name: "http://www.openwall.com/lists/oss-security/2020/06/04/3",
                  refsource: "CONFIRM",
                  url: "http://www.openwall.com/lists/oss-security/2020/06/04/3",
               },
               {
                  name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18",
                  refsource: "MISC",
                  url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18",
               },
               {
                  name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30",
                  refsource: "MISC",
                  url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30",
               },
               {
                  name: "USN-4398-1",
                  refsource: "UBUNTU",
                  url: "https://usn.ubuntu.com/4398-1/",
               },
               {
                  name: "USN-4398-2",
                  refsource: "UBUNTU",
                  url: "https://usn.ubuntu.com/4398-2/",
               },
               {
                  name: "GLSA-202007-46",
                  refsource: "GENTOO",
                  url: "https://security.gentoo.org/glsa/202007-46",
               },
               {
                  name: "https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak",
                  refsource: "MISC",
                  url: "https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak",
               },
               {
                  name: "http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html",
                  refsource: "MISC",
                  url: "http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:freedesktop:dbus:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "1.12.18",
                        versionStartIncluding: "1.3.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "cve@mitre.org",
               ID: "CVE-2020-12049",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "An issue was discovered in dbus >= 1.3.0 before 1.12.18. The DBusServer in libdbus, as used in dbus-daemon, leaks file descriptors when a message exceeds the per-message file descriptor limit. A local attacker with access to the D-Bus system bus or another system service's private AF_UNIX socket could use this to make the system service reach its file descriptor limit, denying service to subsequent D-Bus clients.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-404",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "http://www.openwall.com/lists/oss-security/2020/06/04/3",
                     refsource: "CONFIRM",
                     tags: [
                        "Mailing List",
                        "Patch",
                        "Third Party Advisory",
                     ],
                     url: "http://www.openwall.com/lists/oss-security/2020/06/04/3",
                  },
                  {
                     name: "https://gitlab.freedesktop.org/dbus/dbus/-/issues/294",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://gitlab.freedesktop.org/dbus/dbus/-/issues/294",
                  },
                  {
                     name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30",
                     refsource: "MISC",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.10.30",
                  },
                  {
                     name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18",
                     refsource: "MISC",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.12.18",
                  },
                  {
                     name: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16",
                     refsource: "MISC",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16",
                  },
                  {
                     name: "USN-4398-1",
                     refsource: "UBUNTU",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://usn.ubuntu.com/4398-1/",
                  },
                  {
                     name: "USN-4398-2",
                     refsource: "UBUNTU",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://usn.ubuntu.com/4398-2/",
                  },
                  {
                     name: "GLSA-202007-46",
                     refsource: "GENTOO",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.gentoo.org/glsa/202007-46",
                  },
                  {
                     name: "https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak",
                     refsource: "MISC",
                     tags: [
                        "Exploit",
                        "Third Party Advisory",
                     ],
                     url: "https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak",
                  },
                  {
                     name: "http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html",
                     refsource: "MISC",
                     tags: [],
                     url: "http://packetstormsecurity.com/files/172840/D-Bus-File-Descriptor-Leak-Denial-Of-Service.html",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "LOCAL",
                  authentication: "NONE",
                  availabilityImpact: "COMPLETE",
                  baseScore: 4.9,
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  vectorString: "AV:L/AC:L/Au:N/C:N/I:N/A:C",
                  version: "2.0",
               },
               exploitabilityScore: 3.9,
               impactScore: 6.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 5.5,
                  baseSeverity: "MEDIUM",
                  confidentialityImpact: "NONE",
                  integrityImpact: "NONE",
                  privilegesRequired: "LOW",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 1.8,
               impactScore: 3.6,
            },
         },
         lastModifiedDate: "2023-06-12T07:15Z",
         publishedDate: "2020-06-08T17:15Z",
      },
   },
}


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