{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-46837",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "dateUpdated": "2024-08-04T05:17:42.455Z",
        "dateReserved": "2022-08-30T00:00:00.000Z",
        "datePublished": "2022-08-30T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
                "shortName": "mitre",
                "dateUpdated": "2022-11-18T00:00:00.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "res_pjsip_t38 in Sangoma Asterisk 16.x before 16.16.2, 17.x before 17.9.3, and 18.x before 18.2.2, and Certified Asterisk before 16.8-cert7, allows an attacker to trigger a crash by sending an m=image line and zero port in a response to a T.38 re-invite initiated by Asterisk. This is a re-occurrence of the CVE-2019-15297 symptoms but not for exactly the same reason. The crash occurs because there is an append operation relative to the active topology, but this should instead be a replace operation."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "n/a",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html"
                },
                {
                    "name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"
                },
                {
                    "name": "DSA-5285",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://www.debian.org/security/2022/dsa-5285"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "text",
                            "lang": "en",
                            "description": "n/a"
                        }
                    ]
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:17:42.455Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://downloads.asterisk.org/pub/security/AST-2021-006.html",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "[debian-lts-announce] 20221117 [SECURITY] [DLA 3194-1] asterisk security update",
                        "tags": [
                            "mailing-list",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html"
                    },
                    {
                        "name": "DSA-5285",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://www.debian.org/security/2022/dsa-5285"
                    }
                ]
            }
        ]
    }
}