CVE-2017-11171

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gnome:gnome-session:*:*:*:*:*:*:*:*", "matchCriteriaId": "71BA08C3-D836-4FB1-98D3-1F31FEE15C77", "versionEndIncluding": "2.29.92", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Bad reference counting in the context of accept_ice_connection() in gsm-xsmp-server.c in old versions of gnome-session up until version 2.29.92 allows a local attacker to establish ICE connections to gnome-session with invalid authentication data (an invalid magic cookie). Each failed authentication attempt will leak a file descriptor in gnome-session. When the maximum number of file descriptors is exhausted in the gnome-session process, it will enter an infinite loop trying to communicate without success, consuming 100% of the CPU. The graphical session associated with the gnome-session process will stop working correctly, because communication with gnome-session is no longer possible."}, {"lang": "es", "value": "Un mal conteo de referencias en el contexto de la funci\u00f3n accept_ice_connection() en el archivo gsm-xsmp-server.c en versiones anteriores de gnome-session hasta la versi\u00f3n 2.29.92, permite a un atacante local establecer conexiones ICE en gnome-session con datos de autenticaci\u00f3n no v\u00e1lidos (cookie magic no v\u00e1lida). Cada intento de autenticaci\u00f3n fallido filtrar\u00e1 un descriptor de archivo en gnome-session. Cuando se agote el n\u00famero m\u00e1ximo de descriptores de archivo en el proceso de gnome-session, entrar\u00e1 en un bucle infinito intentando comunicarse sin \u00e9xito, consumiendo el 100% de la CPU. La sesi\u00f3n gr\u00e1fica asociada con el proceso de gnome-session dejar\u00e1 de funcionar correctamente, porque ya no es posible la comunicaci\u00f3n con gnome-session."}], "id": "CVE-2017-11171", "lastModified": "2026-06-17T01:01:20.880", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 4.9, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-07-11T20:29:00.267", "references": [{"source": "cve@mitre.org", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1025068"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/GNOME/gnome-session/commit/b0dc999e0b45355314616321dbb6cb71e729fc9d"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Third Party Advisory"], "url": "https://bugzilla.suse.com/show_bug.cgi?id=1025068"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/GNOME/gnome-session/commit/b0dc999e0b45355314616321dbb6cb71e729fc9d"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-835"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "gnome-session: Bad reference counting in accept_ice_connection() permits resource exhaustion", "id": "1470706", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1470706"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.3", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-400", "details": ["Bad reference counting in the context of accept_ice_connection() in gsm-xsmp-server.c in old versions of gnome-session up until version 2.29.92 allows a local attacker to establish ICE connections to gnome-session with invalid authentication data (an invalid magic cookie). Each failed authentication attempt will leak a file descriptor in gnome-session. When the maximum number of file descriptors is exhausted in the gnome-session process, it will enter an infinite loop trying to communicate without success, consuming 100% of the CPU. The graphical session associated with the gnome-session process will stop working correctly, because communication with gnome-session is no longer possible.", "A denial-of-service flaw was found in the way gnome-session handled ICE connections. A local, authenticated attacker could potentially use this flaw to cause the gnome-session process to exhaust its file descriptors and enter an infinite loop, thereby leading to denial of service."], "name": "CVE-2017-11171", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "gnome-session", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "gnome-session", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "gnome-session", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2017-07-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-11171\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-11171"], "threat_severity": "Low"}

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