{
    "containers": {
        "cna": {
            "affected": [
                {
                    "product": "qemu",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "vulnerable up to (including) qemu 5.2.0"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-476",
                            "description": "CWE-476",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "dateUpdated": "2022-09-05T05:06:36.000Z",
                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat"
            },
            "references": [
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://bugs.launchpad.net/qemu/+bug/1912780"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://www.openwall.com/lists/oss-security/2021/01/28/1"
                },
                {
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://security.netapp.com/advisory/ntap-20210708-0004/"
                },
                {
                    "name": "[debian-lts-announce] 20220404 [SECURITY] [DLA 2970-1] qemu security update",
                    "tags": [
                        "mailing-list",
                        "x_refsource_MLIST"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html"
                },
                {
                    "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
                    "tags": [
                        "mailing-list",
                        "x_refsource_MLIST"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T17:30:07.781Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://bugs.launchpad.net/qemu/+bug/1912780"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://www.openwall.com/lists/oss-security/2021/01/28/1"
                    },
                    {
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://security.netapp.com/advisory/ntap-20210708-0004/"
                    },
                    {
                        "name": "[debian-lts-announce] 20220404 [SECURITY] [DLA 2970-1] qemu security update",
                        "tags": [
                            "mailing-list",
                            "x_refsource_MLIST",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html"
                    },
                    {
                        "name": "[debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security update",
                        "tags": [
                            "mailing-list",
                            "x_refsource_MLIST",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html"
                    }
                ]
            }
        ]
    },
    "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2021-20196",
        "datePublished": "2021-05-26T21:16:58.000Z",
        "dateReserved": "2020-12-17T00:00:00.000Z",
        "dateUpdated": "2024-08-03T17:30:07.781Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}