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 \u003e= 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\u0027s 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 \u003e= 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\u0027s 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",
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            "lang": "eng",
            "value": "An issue was discovered in dbus \u003e= 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\u0027s 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": [
          {
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              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
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        ]
      },
      "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/"
          },
          {
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            "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:*:*:*",
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              {
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              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                "cpe_name": [],
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              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
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              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-12049"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "An issue was discovered in dbus \u003e= 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\u0027s 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": [
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              ],
              "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": [
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              ],
              "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": [
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              "url": "https://gitlab.freedesktop.org/dbus/dbus/-/tags/dbus-1.13.16"
            },
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              "url": "https://usn.ubuntu.com/4398-2/"
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              "refsource": "GENTOO",
              "tags": [
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              "name": "https://securitylab.github.com/advisories/GHSL-2020-057-DBus-DoS-file-descriptor-leak",
              "refsource": "MISC",
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                "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",
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              "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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