gsd-2020-25637
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Aliases
Aliases
CVE-2020-25637


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-25637",
    "description": "A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
    "id": "GSD-2020-25637",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-25637.html",
      "https://access.redhat.com/errata/RHSA-2021:1762",
      "https://access.redhat.com/errata/RHSA-2020:5111",
      "https://access.redhat.com/errata/RHSA-2020:5040",
      "https://advisories.mageia.org/CVE-2020-25637.html",
      "https://security.archlinux.org/CVE-2020-25637",
      "https://linux.oracle.com/cve/CVE-2020-25637.html",
      "https://ubuntu.com/security/CVE-2020-25637"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-25637"
      ],
      "details": "A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
      "id": "GSD-2020-25637",
      "modified": "2023-12-13T01:21:57.245729Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
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        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2020-25637",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "libvirt",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "libvirt versions before 6.8.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
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      "data_version": "4.0",
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            "value": "A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-415"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1881037",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1881037"
          },
          {
            "name": "openSUSE-SU-2020:1778",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html"
          },
          {
            "name": "openSUSE-SU-2020:1777",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00073.html"
          },
          {
            "name": "GLSA-202210-06",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202210-06"
          },
          {
            "name": "[debian-lts-announce] 20240401 [SECURITY] [DLA 3778-1] libvirt security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:redhat:libvirt:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "56B3552B-7C49-46EA-9B46-E85EF006CD97",
                    "versionEndExcluding": "6.8.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
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                ],
                "negate": false,
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            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit access control driver. Specifically, clients connecting to the read-write socket with limited ACL permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or potentially escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
          },
          {
            "lang": "es",
            "value": "Se encontr\u00f3 que ocurr\u00eda un problema de doble liberaci\u00f3n de la memoria en la API de libvirt, en versiones anteriores a 6.8.0, responsable de pedir informaci\u00f3n sobre unas interfaces de red de un dominio QEMU en ejecuci\u00f3n.\u0026#xa0;Este fallo  afecta al controlador de control de acceso polkit.\u0026#xa0;Espec\u00edficamente, unos clientes que se conectan al socket de lectura y escritura con permisos limitados de ACL podr\u00edan usar este fallo para bloquear el demonio libvirt, resultando en una denegaci\u00f3n de servicio o potencialmente escalar sus privilegios sobre el sistema.\u0026#xa0;La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, as\u00ed como la disponibilidad del sistema"
          }
        ],
        "id": "CVE-2020-25637",
        "lastModified": "2024-04-01T13:16:37.240",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "LOCAL",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 7.2,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 10.0,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.7,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 0.8,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2020-10-06T14:15:12.527",
        "references": [
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00072.html"
          },
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          },
          {
            "source": "secalert@redhat.com",
            "tags": [
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              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1881037"
          },
          {
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            "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
          },
          {
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            "tags": [
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            ],
            "url": "https://security.gentoo.org/glsa/202210-06"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
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                "lang": "en",
                "value": "CWE-415"
              }
            ],
            "source": "secalert@redhat.com",
            "type": "Primary"
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          {
            "description": [
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                "lang": "en",
                "value": "CWE-415"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Secondary"
          }
        ]
      }
    }
  }
}


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