CVE-2018-18505

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This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65."}, {"lang": "es", "value": "Una soluci\u00f3n anterior para la vulnerabilidad de comunicaci\u00f3n entre procesos (IPC), CVE-2011-3079, a\u00f1ad\u00eda una autenticaci\u00f3n para comunicaciones entre endpoints de IPC y servidores padres durante la creaci\u00f3n de procesos IPC. Dicha autenticaci\u00f3n no es suficiente para canales creados despu\u00e9s de que el proceso IPC se inicie, lo que conduce a su aplicaci\u00f3n incorrecta a canales posteriores. Esto podr\u00eda permitir un escape del sandbox a trav\u00e9s de canales IPC debido a la falta de la validaci\u00f3n de mensajes en el proceso en escucha. Esta vulnerabilidad afecta a las versiones anteriores a la 60.5 de Thunderbird, las versiones anteriores a la 60.5 de Firefox ESR y las versiones anteriores a la 65 de Firefox."}], "id": "CVE-2018-18505", "lastModified": "2026-06-17T01:47:25.393", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", 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Advisory"], "url": "https://www.debian.org/security/2019/dsa-4392"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-01/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-02/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-03/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Jed Davis as the original reporter.", "affected_release": [{"advisory": "RHSA-2019:0218", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:60.5.0-2.el6", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-01-30T00:00:00Z"}, {"advisory": "RHSA-2019:0269", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:60.5.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-02-04T00:00:00Z"}, {"advisory": "RHSA-2019:0219", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:60.5.0-2.el7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-01-30T00:00:00Z"}, {"advisory": "RHSA-2019:0270", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:60.5.0-1.el7_6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-02-04T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Privilege escalation through IPC channel messages", "id": "1670633", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1670633"}, "csaw": false, "cvss3": {"cvss3_base_score": "10.0", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-287", "details": ["An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65."], "name": "CVE-2018-18505", "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": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2019-01-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2018-18505\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-18505\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-02/#CVE-2018-18505"], "threat_severity": "Important"}

{}