CVE-2011-4603

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different vulnerability than CVE-2011-3594."}, {"lang": "es", "value": "La funci\u00f3n silc_channel_message de ops.c del complemento del protocolo SILC de libpurple de Pidgin en versiones anteriores 2.10.1 no realiza la validaci\u00f3n prevista UTF-8 en los datos del mensaje, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un mensaje modificado. Una vulnerabilidad distinta a la CVE-2011-3594."}], "id": "CVE-2011-4603", "lastModified": "2026-06-16T23:35:07.613", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-12-17T03:54:46.120", "references": [{"source": "secalert@redhat.com", "tags": ["Patch"], "url": "http://developer.pidgin.im/viewmtn/revision/diff/c7b95cc3be0590b52edc02d4750ae62844c1acb6/with/afb9ede3de989f217f03d5670cca00e628bd11f1/libpurple/protocols/silc/ops.c"}, {"source": "secalert@redhat.com", "url": "http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/47234"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.pidgin.im/news/security/?id=59"}, {"source": "secalert@redhat.com", "url": "http://www.redhat.com/support/errata/RHSA-2011-1820.html"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/51074"}, {"source": "secalert@redhat.com", "url": "https://hermes.opensuse.org/messages/13195955"}, {"source": "secalert@redhat.com", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18303"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "http://developer.pidgin.im/viewmtn/revision/diff/c7b95cc3be0590b52edc02d4750ae62844c1acb6/with/afb9ede3de989f217f03d5670cca00e628bd11f1/libpurple/protocols/silc/ops.c"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/47234"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.pidgin.im/news/security/?id=59"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.redhat.com/support/errata/RHSA-2011-1820.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/51074"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://hermes.opensuse.org/messages/13195955"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18303"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Pidgin project for reporting this issue. Upstream acknowledges Diego Bauche Madero (IOActive) as the original reporter.", "affected_release": [{"advisory": "RHSA-2011:1820", "cpe": "cpe:/o:redhat:enterprise_linux:4", "package": "pidgin-0:2.6.6-10.el4", "product_name": "Red Hat Enterprise Linux 4", "release_date": "2011-12-14T00:00:00Z"}, {"advisory": "RHSA-2011:1820", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "pidgin-0:2.6.6-5.el5_7.4", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-12-14T00:00:00Z"}], "bugzilla": {"description": "pidgin: SILC remote crash on channel messages", "id": "766446", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=766446"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "status": "verified"}, "details": ["The silc_channel_message function in ops.c in the SILC protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted message, a different vulnerability than CVE-2011-3594."], "name": "CVE-2011-4603", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "pidgin", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-12-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4603\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4603"], "statement": "Not vulnerable. This issue did not affect the version of pidgin as shipped with Red Hat Enterprise Linux 6 as it explicitly disables support for the SILC protocol.", "threat_severity": "Moderate"}

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