CVE-2021-3939

{"id": "CVE-2021-3939", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 1.1}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2021-11-17T04:15:06.977", "references": [{"url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html", "source": "security@ubuntu.com"}, {"url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149", "tags": ["Broken Link"], "source": "security@ubuntu.com"}, {"url": "https://ubuntu.com/security/notices/USN-5149-1", "tags": ["Vendor Advisory"], "source": "security@ubuntu.com"}, {"url": "http://packetstormsecurity.com/files/172848/Ubuntu-accountsservice-Double-Free-Memory-Corruption.html", "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1950149", "tags": ["Broken Link"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://ubuntu.com/security/notices/USN-5149-1", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-590"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-763"}]}], "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"}], "lastModified": "2024-11-21T06:22:49.100", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AB08CB97-D747-4D11-9824-4AD73BAA28F6", "versionEndExcluding": "0.6.55-0ubuntu12\\~20.05", "versionStartIncluding": "0.6.55-0ubuntu12\\~20.04"}, {"criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EDFB086F-2F2C-48ED-B020-96FDA6D581EB", "versionEndExcluding": "0.6.55-0ubuntu13.3", "versionStartIncluding": "0.6.55-0ubuntu13"}, {"criteria": "cpe:2.3:a:canonical:accountsservice:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1A2D965-5BF5-4B21-899A-1AD29AE1F669", "versionEndExcluding": "0.6.55-0ubuntu14.1", "versionStartIncluding": "0.6.55-0ubuntu14"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*", "vulnerable": true, "matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8EF1C1CC-3FAE-4DE3-BC41-E5B14D5721F4"}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AAE4D2D0-CEEB-416F-8BC5-A7987DF56190"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}