{
    "containers": {
        "cna": {
            "affected": [
                {
                    "product": "QEMU",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "all versions"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw was found in the USB redirector device (usb-redir) of QEMU. Small USB packets are combined into a single, large transfer request, to reduce the overhead and improve performance. The combined size of the bulk transfer is used to dynamically allocate a variable length array (VLA) on the stack without proper validation. Since the total size is not bounded, a malicious guest could use this flaw to influence the array length and cause the QEMU process to perform an excessive allocation on the stack, resulting in a denial of service."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-770",
                            "description": "CWE-770",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "dateUpdated": "2022-09-05T05:06:17.000Z",
                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat"
            },
            "references": [
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955695"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://www.openwall.com/lists/oss-security/2021/05/05/5"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524c"
                },
                {
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://security.netapp.com/advisory/ntap-20210708-0008/"
                },
                {
                    "name": "[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update",
                    "tags": [
                        "mailing-list",
                        "x_refsource_MLIST"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html"
                },
                {
                    "name": "GLSA-202208-27",
                    "tags": [
                        "vendor-advisory",
                        "x_refsource_GENTOO"
                    ],
                    "url": "https://security.gentoo.org/glsa/202208-27"
                },
                {
                    "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": "2024-08-03T17:01:07.589Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1955695"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://www.openwall.com/lists/oss-security/2021/05/05/5"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://gitlab.com/qemu-project/qemu/-/commit/05a40b172e4d691371534828078be47e7fff524c"
                    },
                    {
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://security.netapp.com/advisory/ntap-20210708-0008/"
                    },
                    {
                        "name": "[debian-lts-announce] 20210902 [SECURITY] [DLA 2753-1] qemu security update",
                        "tags": [
                            "mailing-list",
                            "x_refsource_MLIST",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html"
                    },
                    {
                        "name": "GLSA-202208-27",
                        "tags": [
                            "vendor-advisory",
                            "x_refsource_GENTOO",
                            "x_transferred"
                        ],
                        "url": "https://security.gentoo.org/glsa/202208-27"
                    },
                    {
                        "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-2021-3527",
        "datePublished": "2021-05-26T21:13:56.000Z",
        "dateReserved": "2021-04-30T00:00:00.000Z",
        "dateUpdated": "2024-08-03T17:01:07.589Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}