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    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-3939",
        "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
        "assignerShortName": "canonical",
        "dateUpdated": "2024-09-16T18:02:58.362Z",
        "dateReserved": "2021-11-09T00:00:00.000Z",
        "datePublished": "2021-11-17T03:15:10.949Z"
    },
    "containers": {
        "cna": {
            "title": "Free of static data in accountsservice",
            "datePublic": "2021-11-16T00:00:00.000Z",
            "providerMetadata": {
                "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc",
                "shortName": "canonical",
                "dateUpdated": "2023-06-12T00:00:00.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Ubuntu-specific modifications to accountsservice (in patch file debian/patches/0010-set-language.patch) caused the fallback_locale variable, pointing to static storage, to be freed, in the user_change_language_authorized_cb function. This is reachable via the SetLanguage dbus function. This is fixed in versions 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1."
                }
            ],
            "affected": [
                {
                    "vendor": "Ubuntu",
                    "product": "accountsservice",
                    "versions": [
                        {
                            "version": "0.6.55-0ubuntu12~20.04",
                            "status": "affected",
                            "lessThan": "0.6.55-0ubuntu12~20.04.5",
                            "versionType": "custom"
                        },
                        {
                            "version": "0.6.55-0ubuntu13",
                            "status": "affected",
                            "lessThan": "0.6.55-0ubuntu13.3",
                            "versionType": "custom"
                        },
                        {
                            "version": "0.6.55-0ubuntu14",
                            "status": "affected",
                            "lessThan": "0.6.55-0ubuntu14.1",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://ubuntu.com/security/notices/USN-5149-1"
                },
                {
                    "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149"
                },
                {
                    "url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Kevin Backhouse"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
                        "attackVector": "LOCAL",
                        "attackComplexity": "HIGH",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "CHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-590 Free of Memory not on the Heap",
                            "cweId": "CWE-590"
                        }
                    ]
                }
            ],
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                "engine": "Vulnogram 0.0.9"
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            "source": {
                "advisory": "USN-5149-1",
                "defect": [
                    "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149"
                ],
                "discovery": "EXTERNAL"
            }
        },
        "adp": [
            {
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                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T17:09:09.693Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://ubuntu.com/security/notices/USN-5149-1",
                        "tags": [
                            "x_transferred"
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                        "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149",
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                        "url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html",
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                ]
            }
        ]
    }
}