{
    "containers": {
        "cna": {
            "affected": [
                {
                    "product": "kernel",
                    "vendor": "n/a",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "Affects kernel v5.15.3 and prior, Fixed in v5.16-rc1 and above."
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-362",
                            "description": "CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'), CWE-416 - Use After Free.",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "dateUpdated": "2022-04-19T18:06:25.000Z",
                "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
                "shortName": "redhat"
            },
            "references": [
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1980646"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://ubuntu.com/security/CVE-2021-3640"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://www.openwall.com/lists/oss-security/2021/07/22/1"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951"
                },
                {
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951"
                },
                {
                    "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update",
                    "tags": [
                        "mailing-list",
                        "x_refsource_MLIST"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
                },
                {
                    "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
                    "tags": [
                        "mailing-list",
                        "x_refsource_MLIST"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
                },
                {
                    "name": "DSA-5096",
                    "tags": [
                        "vendor-advisory",
                        "x_refsource_DEBIAN"
                    ],
                    "url": "https://www.debian.org/security/2022/dsa-5096"
                },
                {
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://security.netapp.com/advisory/ntap-20220419-0003/"
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T17:01:07.744Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1980646"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://ubuntu.com/security/CVE-2021-3640"
                    },
                    {
                        "tags": [
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                            "x_transferred"
                        ],
                        "url": "https://www.openwall.com/lists/oss-security/2021/07/22/1"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951"
                    },
                    {
                        "tags": [
                            "x_refsource_MISC",
                            "x_transferred"
                        ],
                        "url": "https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951"
                    },
                    {
                        "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update",
                        "tags": [
                            "mailing-list",
                            "x_refsource_MLIST",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html"
                    },
                    {
                        "name": "[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update",
                        "tags": [
                            "mailing-list",
                            "x_refsource_MLIST",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html"
                    },
                    {
                        "name": "DSA-5096",
                        "tags": [
                            "vendor-advisory",
                            "x_refsource_DEBIAN",
                            "x_transferred"
                        ],
                        "url": "https://www.debian.org/security/2022/dsa-5096"
                    },
                    {
                        "tags": [
                            "x_refsource_CONFIRM",
                            "x_transferred"
                        ],
                        "url": "https://security.netapp.com/advisory/ntap-20220419-0003/"
                    }
                ]
            }
        ]
    },
    "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2021-3640",
        "datePublished": "2022-03-03T22:04:15.000Z",
        "dateReserved": "2021-07-09T00:00:00.000Z",
        "dateUpdated": "2024-08-03T17:01:07.744Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}