{
  "affected": [],
  "aliases": [
    "CVE-2021-3929"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-25T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A DMA reentrancy issue was found in the NVM Express Controller (NVME) emulation in QEMU. This CVE is similar to CVE-2021-3750 and, just like it, when the reentrancy write triggers the reset function nvme_ctrl_reset(), data structs will be freed leading to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition or, potentially, executing arbitrary code within the context of the QEMU process on the host.",
  "id": "GHSA-h66w-323g-4q62",
  "modified": "2022-09-01T00:00:21Z",
  "published": "2022-08-26T00:03:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3929"
    },
    {
      "type": "WEB",
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    },
    {
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020298"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/qemu-project/qemu/-/commit/736b01642d85be832385"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/qemu-project/qemu/-/issues/556"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/qemu-project/qemu/-/issues/782"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I"
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  ],
  "schema_version": "1.4.0",
  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
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  ]
}

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    "id": "GSD-2021-3929",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-3929.html",
      "https://ubuntu.com/security/CVE-2021-3929"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-3929"
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      "id": "GSD-2021-3929",
      "modified": "2023-12-13T01:23:34.996363Z",
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          {
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          {
            "name": "FEDORA-2022-f0a2695054",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHNN7QJCEQH7AQG5AQP2GEFAQE6K635I/"
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    "nvd.nist.gov": {
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            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=2020298",
              "refsource": "MISC",
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                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020298"
            },
            {
              "name": "https://gitlab.com/qemu-project/qemu/-/issues/556",
              "refsource": "MISC",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
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              "url": "https://gitlab.com/qemu-project/qemu/-/issues/556"
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              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2021-3929"
            },
            {
              "name": "https://gitlab.com/qemu-project/qemu/-/issues/782",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://gitlab.com/qemu-project/qemu/-/issues/782"
            },
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              "refsource": "FEDORA",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.5,
          "impactScore": 6.0
        }
      },
      "lastModifiedDate": "2022-10-01T02:28Z",
      "publishedDate": "2022-08-25T20:15Z"
    }
  }
}

{
  "document": {
    "aggregate_severity": {
      "text": "hoch"
    },
    "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": "QEMU ist eine freie Virtualisierungssoftware, die die gesamte Hardware eines Computers emuliert.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in QEMU ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- MacOS X\n- Windows\n- Sonstiges",
        "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-2022-0429 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2022/wid-sec-w-2022-0429.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2022-0429 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0429"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3800-1 vom 2023-09-27",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016339.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:3721-1 vom 2023-09-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-September/016281.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:2358-1 vom 2023-06-02",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-June/015047.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:0840-1 vom 2023-03-21",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-March/014110.html"
      },
      {
        "category": "external",
        "summary": "SUSE Security Update SUSE-SU-2023:0761-1 vom 2023-03-16",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2023-March/014067.html"
      },
      {
        "category": "external",
        "summary": "Red Hat Bugzilla - Bug 2020298 vom 2022-06-21",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2020298"
      },
      {
        "category": "external",
        "summary": "Gitlab - nvme: DMA reentrancy issue leads to use-after-free- vom 2022-06-21",
        "url": "https://gitlab.com/qemu-project/qemu/-/issues/782"
      }
    ],
    "source_lang": "en-US",
    "title": "QEMU: Schwachstelle erm\u00f6glicht Codeausf\u00fchrung",
    "tracking": {
      "current_release_date": "2023-09-27T22:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T16:49:39.293+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2022-0429",
      "initial_release_date": "2022-06-21T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2022-06-21T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2022-09-21T22:00:00.000+00:00",
          "number": "2",
          "summary": "Referenz(en) aufgenommen: FEDORA-2022-F0A2695054"
        },
        {
          "date": "2023-03-16T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-03-21T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-06-04T22:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-09-20T22:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von SUSE aufgenommen"
        },
        {
          "date": "2023-09-27T22:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von SUSE aufgenommen"
        }
      ],
      "status": "final",
      "version": "7"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source QEMU \u003c= 6.2.0 rc2",
            "product": {
              "name": "Open Source QEMU \u003c= 6.2.0 rc2",
              "product_id": "76021",
              "product_identification_helper": {
                "cpe": "cpe:/a:qemu:qemu:0.1.1"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "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"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-3929",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in QEMU. Der Fehler besteht aufgrund eines use-after-free Fehlers in der NVM Express Controller Emulation in QEMU innerhalb der dma_buf_write() und dma_buf_read() Funktion in hw/nvme/ctrl.c:nvme_tx(). Ein entfernter, authentisierter Angreifer mit bestimmten Rechten kann diese Schwachstelle zur Ausf\u00fchrung von beliebigem Code ausnutzen. Im schlimmsten Fall kann der Angreifer das verwundbare System kompromittieren."
        }
      ],
      "product_status": {
        "known_affected": [
          "T002207"
        ],
        "last_affected": [
          "76021"
        ]
      },
      "release_date": "2022-06-21T22:00:00Z",
      "title": "CVE-2021-3929"
    }
  ]
}