csaf_certbund - wid-sec-w-2022-0885

wid-sec-w-2022-0885

Vulnerability from csaf_certbund

Published

2021-11-24 23:00

Modified

2024-04-01 22:00

Summary

libvirt: Schwachstelle ermöglicht Denial of Service

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

Libvirt ist eine Bibliothek, die Schnittstellen zu den Virtualisierungsfunktionen von Linux anbietet und Werkzeuge zur Verwaltung von virtualisierten Systemen zur Verfügung stellt.

Angriff

Ein lokaler Angreifer kann eine Schwachstelle in libvirt ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme

- Appliance - Linux

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Libvirt ist eine Bibliothek, die Schnittstellen zu den Virtualisierungsfunktionen von Linux anbietet und Werkzeuge zur Verwaltung von virtualisierten Systemen zur Verf\u00fcgung stellt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in libvirt ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Appliance\n- Linux",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2022-0885 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2021/wid-sec-w-2022-0885.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0885 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0885"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla - Bug 2024326 vom 2021-11-24",
        "url": "http://bugzilla.redhat.com/show_bug.cgi?id=2024326"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0031-1 vom 2022-01-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/009969.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0032-1 vom 2022-01-05",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/009972.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0042-1 vom 2022-01-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/009982.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0041-1 vom 2022-01-10",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/009983.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0045-1 vom 2022-01-11",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/009990.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0128-1 vom 2022-01-19",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-January/010027.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2022:0045-2 vom 2022-02-17",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2022-February/010236.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-5399-1 vom 2022-05-02",
        "url": "https://ubuntu.com/security/notices/USN-5399-1"
      },
      {
        "category": "external",
        "summary": "Red Hat Security Advisory RHSA-2022:1759 vom 2022-05-10",
        "url": "https://access.redhat.com/errata/RHSA-2022:1759"
      },
      {
        "category": "external",
        "summary": "AVAYA Security Advisory ASA-2022-062 vom 2022-05-13",
        "url": "https://downloads.avaya.com/css/P8/documents/101081791"
      },
      {
        "category": "external",
        "summary": "Oracle Linux Security Advisory ELSA-2022-9668 vom 2022-08-02",
        "url": "http://linux.oracle.com/errata/ELSA-2022-9668.html"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3778 vom 2024-04-01",
        "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
      }
    ],
    "source_lang": "en-US",
    "title": "libvirt: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-04-01T22:00:00.000+00:00",
      "generator": {
        "date": "2024-04-02T09:06:56.224+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-0885",
      "initial_release_date": "2021-11-24T23:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2021-11-24T23:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2022-01-05T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-01-10T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-01-11T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-01-19T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-02-17T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2022-05-02T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2022-05-10T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Red Hat aufgenommen"
        },
        {
          "date": "2022-05-15T22:00:00.000+00:00",
          "number": "9",
          "summary": "Neue Updates von AVAYA aufgenommen"
        },
        {
          "date": "2022-08-02T22:00:00.000+00:00",
          "number": "10",
          "summary": "Neue Updates von Oracle Linux aufgenommen"
        },
        {
          "date": "2024-04-01T22:00:00.000+00:00",
          "number": "11",
          "summary": "Neue Updates von Debian aufgenommen"
        }
      ],
      "status": "final",
      "version": "11"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Avaya Aura Application Enablement Services",
            "product": {
              "name": "Avaya Aura Application Enablement Services",
              "product_id": "T015516",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:aura_application_enablement_services:-"
              }
            }
          },
          {
            "category": "product_name",
            "name": "Avaya Aura Communication Manager",
            "product": {
              "name": "Avaya Aura Communication Manager",
              "product_id": "T015126",
              "product_identification_helper": {
                "cpe": "cpe:/a:avaya:communication_manager:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Avaya"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source libvirt",
            "product": {
              "name": "Open Source libvirt",
              "product_id": "306126",
              "product_identification_helper": {
                "cpe": "cpe:/a:redhat:libvirt:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Oracle Linux",
            "product": {
              "name": "Oracle Linux",
              "product_id": "T004914",
              "product_identification_helper": {
                "cpe": "cpe:/o:oracle:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Oracle"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Red Hat Enterprise Linux",
            "product": {
              "name": "Red Hat Enterprise Linux",
              "product_id": "67646",
              "product_identification_helper": {
                "cpe": "cpe:/o:redhat:enterprise_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "SUSE Linux",
            "product": {
              "name": "SUSE Linux",
              "product_id": "T002207",
              "product_identification_helper": {
                "cpe": "cpe:/o:suse:suse_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-3975",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in libvirt. Durch ein fehlendes \"Lock\" kann in der \"qemuMonitorUnregister()\" Funktion in \"qemuProcessHandleMonitorEOF\" eine Use-After-Free Situation entstehen. Ein Angreifer aus einer virtuellen Maschine kann dies ausnutzen, um den libvirt Daemon zum Absturz zu bringen."
        }
      ],
      "product_status": {
        "known_affected": [
          "2951",
          "T002207",
          "67646",
          "T015516",
          "T000126",
          "306126",
          "T015126",
          "T004914"
        ]
      },
      "release_date": "2021-11-24T23:00:00Z",
      "title": "CVE-2021-3975"
    }
  ]
}

cve-2021-3975

Vulnerability from cvelistv5

Published

2022-08-23 00:00

Modified

2024-08-03 17:09

Severity ?

Summary

A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=2024326
	https://access.redhat.com/security/cve/CVE-2021-3975
	https://ubuntu.com/security/CVE-2021-3975
	https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7
	https://security.netapp.com/advisory/ntap-20221201-0002/
	https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html	mailing-list

Impacted products

▼	Vendor	Product
	n/a	libvirt

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:09:09.828Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024326"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2021-3975"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://ubuntu.com/security/CVE-2021-3975"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20221201-0002/"
          },
          {
            "name": "[debian-lts-announce] 20240401 [SECURITY] [DLA 3778-1] libvirt security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libvirt",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in libvirt v7.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 - Use After Free",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-01T13:05:53.920907",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024326"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2021-3975"
        },
        {
          "url": "https://ubuntu.com/security/CVE-2021-3975"
        },
        {
          "url": "https://github.com/libvirt/libvirt/commit/1ac703a7d0789e46833f4013a3876c2e3af18ec7"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20221201-0002/"
        },
        {
          "name": "[debian-lts-announce] 20240401 [SECURITY] [DLA 3778-1] libvirt security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00000.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2021-3975",
    "datePublished": "2022-08-23T00:00:00",
    "dateReserved": "2021-11-18T00:00:00",
    "dateUpdated": "2024-08-03T17:09:09.828Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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