FKIE_CVE-2020-1712

Vulnerability from fkie_nvd - Published: 2020-03-31 17:15 - Updated: 2026-10-14 09:17
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54Patch, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abbPatch, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2dPatch, Third Party Advisory
secalert@redhat.comhttps://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/06/msg00025.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://www.openwall.com/lists/oss-security/2020/02/05/1Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/637486261528e8aa3da9f26a4487dc254f4b7abbPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/bc130b6858327b382b07b3985cf48e2aa9016b2dPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/systemd/systemd/commit/ea0d0ede03c6f18dbc5036c5e9cccf97e415ccc2Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/06/msg00025.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2020/02/05/1Mailing List, Patch, Third Party Advisory
0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
Impacted products
Vendor Product Version
systemd_project systemd *
redhat ceph_storage 4.0
redhat discovery -
redhat migration_toolkit 1.0
redhat openshift_container_platform 4.0
redhat enterprise_linux 8.0
debian debian_linux 9.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "systemd",
          "vendor": "[UNKNOWN]",
          "versions": [
            {
              "status": "affected",
              "version": "before v245-rc1"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    },
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
          "vendor": "Siemens",
          "versions": [
            {
              "lessThan": "V3.1.5",
              "status": "affected",
              "version": "V3.1.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "20030C2B-7090-4057-BBE7-CFFEB5F6B6E8",
              "versionEndIncluding": "244",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D6E54096-5D45-4CB2-AC9A-DDB55BF2B94C",
              "vulnerable": true
            },
            {
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            },
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              "matchCriteriaId": "7064499F-9063-4181-A26F-A3476C46CFE9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "932D137F-528B-4526-9A89-CD59FA1AB0FE",
              "vulnerable": true
            },
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              "vulnerable": true
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          ],
          "negate": false,
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    },
    {
      "nodes": [
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 una vulnerabilidad uso de la memoria previamente liberada de la pila en systemd versiones anteriores a v245-rc1, donde se llevaron a cabo consultas de Polkit asincr\u00f3nicas mientras se manejan mensajes dbus. Un atacante no privilegiado local puede abusar de este fallo para bloquear los servicios de systemd o potencialmente ejecutar c\u00f3digo y elevar sus privilegios, mediante el env\u00edo de mensajes dbus especialmente dise\u00f1ados."
    }
  ],
  "id": "CVE-2020-1712",
  "lastModified": "2026-10-14T09:17:18.400",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-1712",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-06-09T15:52:42.249101Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2020-03-31T17:15:26.577",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1712"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
      "url": "https://github.com/systemd/systemd/commit/1068447e6954dc6ce52f099ed174c442cb89ed54"
    },
    {
      "source": "secalert@redhat.com",
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    },
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    },
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    {
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    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
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      ],
      "source": "secalert@redhat.com",
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    {
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          "value": "CWE-416"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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