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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:stunnel:stunnel:4.40:*:*:*:*:*:*:*", "matchCriteriaId": "D8E83FE3-B2C1-4DDB-8BD4-48A1DCD25496", "vulnerable": true}, {"criteria": "cpe:2.3:a:stunnel:stunnel:4.41:*:*:*:*:*:*:*", "matchCriteriaId": "7F82A3BF-F540-4C6B-846F-4E614849EDC8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors."}, {"lang": "es", "value": "stunnel v4.40 y v4.41 permite a atacantes remotos ejecutar c\u00f3digo de su elecci\u00f3n o provocar una denegaci\u00f3n de servicio (corrupci\u00f3n de memoria din\u00e1mica) a trav\u00e9s de vectores no especificados"}], "id": "CVE-2011-2940", "lastModified": "2026-06-16T23:32:17.753", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2011-08-25T14:22:47.303", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/45705"}, {"source": "secalert@redhat.com", "url": "http://securitytracker.com/id?1025959"}, {"source": "secalert@redhat.com", "url": "http://stunnel.org/?page=sdf_ChangeLog"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/08/19/18"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/08/19/6"}, {"source": "secalert@redhat.com", "url": "http://www.osvdb.org/74600"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/49254"}, {"source": "secalert@redhat.com", "url": "http://www.stunnel.org/pipermail/stunnel-announce/2011-August/000059.html"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=732068"}, {"source": "secalert@redhat.com", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69318"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/45705"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://securitytracker.com/id?1025959"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://stunnel.org/?page=sdf_ChangeLog"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/08/19/18"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/08/19/6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.osvdb.org/74600"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/49254"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.stunnel.org/pipermail/stunnel-announce/2011-August/000059.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=732068"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69318"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "stunnel: heap corruption flaw in 4.4x leads to remote DoS and possible code execution", "id": "732068", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=732068"}, "csaw": false, "cvss": {"cvss_base_score": "6.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "status": "draft"}, "details": ["stunnel 4.40 and 4.41 might allow remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors."], "name": "CVE-2011-2940", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "stunnel", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-08-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-2940\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-2940"], "statement": "Not vulnerable. This issue did not affect the versions of stunnel as shipped with Red Hat Enterprise Linux 4, 5, or 6.", "threat_severity": "Important"}

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