{ "id": "CVE-2021-3939", "sourceIdentifier": "security@ubuntu.com", "published": "2021-11-17T04:15:06.977", "lastModified": "2021-11-19T16:30:21.643", "vulnStatus": "Analyzed", "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." }, { "lang": "es", "value": "Unas modificaciones espec\u00edficas de Ubuntu a accountsservice (en el archivo de parche debian/patches/0010-set-language.patch) causaron la liberaci\u00f3n de la variable fallback_locale, que apunta al almacenamiento est\u00e1tico, en la funci\u00f3n user_change_language_authorized_cb. Esto es accesible por medio de la funci\u00f3n dbus SetLanguage. Esto es corregido en las versiones 0.6.55-0ubuntu12~20.04.5, 0.6.55-0ubuntu13.3, 0.6.55-0ubuntu14.1" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 }, { "source": "security@ubuntu.com", "type": "Secondary", "cvssData": { "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" }, "exploitabilityScore": 1.1, "impactScore": 6.0 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "baseScore": 7.2 }, "baseSeverity": "HIGH", "exploitabilityScore": 3.9, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-763" } ] }, { "source": "security@ubuntu.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-590" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.6.55-0ubuntu12\\~20.04", "versionEndExcluding": "0.6.55-0ubuntu12\\~20.05", "matchCriteriaId": "AB08CB97-D747-4D11-9824-4AD73BAA28F6" }, { "vulnerable": true, "criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.6.55-0ubuntu13", "versionEndExcluding": "0.6.55-0ubuntu13.3", "matchCriteriaId": "EDFB086F-2F2C-48ED-B020-96FDA6D581EB" }, { "vulnerable": true, "criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.6.55-0ubuntu14", "versionEndExcluding": "0.6.55-0ubuntu14.1", "matchCriteriaId": "F1A2D965-5BF5-4B21-899A-1AD29AE1F669" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB" }, { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*", "matchCriteriaId": "8EF1C1CC-3FAE-4DE3-BC41-E5B14D5721F4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*", "matchCriteriaId": "AAE4D2D0-CEEB-416F-8BC5-A7987DF56190" } ] } ] } ], "references": [ { "url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149", "source": "security@ubuntu.com", "tags": [ "Broken Link" ] }, { "url": "https://ubuntu.com/security/notices/USN-5149-1", "source": "security@ubuntu.com", "tags": [ "Vendor Advisory" ] } ] }