CVE-2018-12383

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This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Firefox < 62, Firefox ESR < 60.2.1, and Thunderbird < 60.2.1."}, {"lang": "es", "value": "Si un usuario guard\u00f3 contrase\u00f1as en versiones anteriores a Firefox 58 y despu\u00e9s estableci\u00f3 una contrase\u00f1a maestra, a\u00fan se puede seguir accediendo a una copia no cifrada de esas contrase\u00f1as. Esto se debe a que el archivo de contrase\u00f1as almacenadas anterior no se elimin\u00f3 cuando los datos se copiaron a un nuevo formato comenzando por Firefox 58. La nueva contrase\u00f1a maestra solo se a\u00f1ade en el nuevo archivo. Esto podr\u00eda permitir la exposici\u00f3n de los datos de contrase\u00f1a almacenados fuera de las expectativas del usuario. La vulnerabilidad afecta a Firefox en versiones anteriores a la 62, Firefox ESR en versiones anteriores a la 60.2.1 y Thunderbird en versiones anteriores a la 60.2.1."}], "id": "CVE-2018-12383", "lastModified": "2026-06-17T01:37:40.400", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", 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"tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2018-20/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2018-23/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2018-25/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-522"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jurgen Gaeremyn as the original reporter.", "affected_release": [{"advisory": "RHSA-2018:2834", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:60.2.1-1.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2018-09-27T00:00:00Z"}, {"advisory": "RHSA-2018:3403", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:60.2.1-5.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2018-10-30T00:00:00Z"}, {"advisory": "RHSA-2018:2835", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:60.2.1-1.el7_5", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2018-09-27T00:00:00Z"}, {"advisory": "RHSA-2018:3458", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:60.2.1-4.el7_5", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2018-11-05T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Setting a master password post-Firefox 58 does not delete unencrypted previously stored passwords", "id": "1625531", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1625531"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-212", "details": ["If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Firefox < 62, Firefox ESR < 60.2.1, and Thunderbird < 60.2.1."], "mitigation": {"lang": "en:us", "value": "To mitigate against this flaw, examine user profile directories for the presence of both `key3.db` and `key4.db` files. If both are present, `key3.db` should be deleted."}, "name": "CVE-2018-12383", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2018-09-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-12383\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-12383\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2018-20/#CVE-2018-12383"], "statement": "Upstream decided to not fix this issue in Firefox ESR 60.2 given the low impact. A future ESR update may correct this flaw.\nThis flaw would impact users who had saved passwords from Firefox 58 or earlier that were not protected by a master password (resulting in an un-encrypted `key3.db`), but set a master password when using Firefox 59 or newer (resulting in an encrypted `key4.db`). The old key file was kept around to facilitate downgrading to Firefox 58.\nThis flaw cannot be exploited through email in Thunderbird as scripting is disabled in this for email content. It may be possible to exploit through Feeds (Atom or RSS) or other browser-like contexts.", "threat_severity": "Low"}

{}