CVE-2013-1762

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"matchCriteriaId": "0F208151-3577-479E-B554-C94708D3D727", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow."}, {"lang": "es", "value": "stunnel v4.21 a v4.54, cuando el protocolo de negociaci\u00f3n CONNECT y la autenticaci\u00f3n NTLM est\u00e1n habilitadas, no realiza la conversi\u00f3n de enteros correctamente, lo que permite ejecutar c\u00f3digo de su elecci\u00f3n a servidores remotos proxy a trav\u00e9s de una solicitud hecha a mano que dispara un desbordamiento de b\u00fafer.\r\n"}], "id": "CVE-2013-1762", "lastModified": "2026-06-16T23:52:04.260", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 6.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:C", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 8.5, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-03-08T18:55:01.743", "references": [{"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2013-0714.html"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2013/dsa-2664"}, {"source": "cve@mitre.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:130"}, {"source": "cve@mitre.org", "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0097"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": 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{"affected_release": [{"advisory": "RHSA-2013:0714", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "stunnel-0:4.29-3.el6_4", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2013-04-08T00:00:00Z"}], "bugzilla": {"description": "Stunnel: buffer overflow vulnerability due to incorrect integer conversion in the NTLM authentication of the CONNECT protocol negotiation", "id": "917839", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=917839"}, "csaw": false, "cvss": {"cvss_base_score": "5.1", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "status": "verified"}, "details": ["stunnel 4.21 through 4.54, when CONNECT protocol negotiation and NTLM authentication are enabled, does not correctly perform integer conversion, which allows remote proxy servers to execute arbitrary code via a crafted request that triggers a buffer overflow."], "name": "CVE-2013-1762", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2013-03-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2013-1762\nhttps://nvd.nist.gov/vuln/detail/CVE-2013-1762\nhttps://www.stunnel.org/CVE-2013-1762.html"], "statement": "This issue did not affect the version of the stunnel package as shipped with Red Hat Enterprise Linux 5.", "threat_severity": "Moderate"}

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