CVE-2012-3461

{"id": "CVE-2012-3461", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.3, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}]}, "published": "2012-08-20T19:55:05.527", "references": [{"url": "http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=684121", "source": "secalert@redhat.com"}, {"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001347.html", "source": "secalert@redhat.com"}, {"url": "http://lists.cypherpunks.ca/pipermail/otr-dev/2012-July/001348.html", "source": "secalert@redhat.com"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00016.html", "source": "secalert@redhat.com"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00019.html", "source": "secalert@redhat.com"}, {"url": "http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00019.html", "source": "secalert@redhat.com"}, {"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=1902baee5d4b056850274ed0fa8c2409f1187435", "source": "secalert@redhat.com"}, {"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=6d4ca89cf1d3c9a8aff696c3a846ac5a51f762c1", "source": "secalert@redhat.com"}, {"url": "http://otr.git.sourceforge.net/git/gitweb.cgi?p=otr/libotr%3Ba=commitdiff%3Bh=b17232f86f8e60d0d22caf9a2400494d3c77da58", "source": "secalert@redhat.com"}, {"url": "http://www.debian.org/security/2012/dsa-2526", "source": "secalert@redhat.com"}, {"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:131", "source": "secalert@redhat.com"}, {"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:097", "source": "secalert@redhat.com"}, {"url": "http://www.securityfocus.com/bid/54907", "source": "secalert@redhat.com"}, {"url": "http://www.ubuntu.com/usn/USN-1541-1", "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=846377", "source": "secalert@redhat.com"}, {"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/77528", "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "The (1) otrl_base64_otr_decode function in src/b64.c; (2) otrl_proto_data_read_flags and (3) otrl_proto_accept_data functions in src/proto.c; and (4) decode function in toolkit/parse.c in libotr before 3.2.1 allocates a zero-length buffer when decoding a base64 string, which allows remote attackers to cause a denial of service (application crash) via a message with the value \"?OTR:===.\", which triggers a heap-based buffer overflow."}, {"lang": "es", "value": "La funci\u00f3n (1) otrl_base64_otr_decode en src/b64.c; la funci\u00f3n (2) otrl_proto_data_read_flags y la funci\u00f3n (3) otrl_proto_accept_data en src/proto.c; y la funci\u00f3n (4) (decode) in toolkit/parse.c in libotr before v3.2.1 asigna un b\u00fafer de longitud cero cuando se decodifica un (string) en base64, lo que permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de un mensaje con el valor \"?OTR:===.\", lo cual dispara un desbordamiento de b\u00fafer basado en memoria din\u00e1mica."}], "lastModified": "2023-02-13T00:25:34.703", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cypherpunks:libotr:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "16FB55F1-A4DA-48A8-A7B9-8ADA15F28F20", "versionEndIncluding": "3.2.0"}, {"criteria": "cpe:2.3:a:cypherpunks:libotr:3.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "917BC37B-B3B5-4802-BF1C-96F1893AC68F"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}