CVE-2012-5821

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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:lynx:lynx:-:*:*:*:*:*:*:*", "matchCriteriaId": "88A939DB-9F4D-4130-893E-4EE90BDF294E", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*", "matchCriteriaId": "01EDA41C-6B2E-49AF-B503-EB3882265C11", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*", "matchCriteriaId": "E4174F4F-149E-41A6-BBCC-D01114C05F38", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*", "matchCriteriaId": "CB66DB75-2B16-4EBF-9B93-CE49D8086E41", "vulnerable": true}, {"criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*", "matchCriteriaId": "E2076871-2E80-4605-A470-A41C1A8EC7EE", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function."}, {"lang": "es", "value": "Lynx no verifica que el certificado del servidor est\u00e1 firmado por una autoridad de certificaci\u00f3n de confianza, lo que permite ataques man-in-the-middle con los que se falsifican servidores SSL mediante certificados hechos a mano. Se trata de un problema relacionado con el uso indebido de una funci\u00f3n GnuTLS determinada."}], "id": "CVE-2012-5821", "lastModified": "2026-06-16T23:47:24.077", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2012-11-04T22:55:04.827", "references": [{"source": "cve@mitre.org", "tags": ["Exploit"], "url": "http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf"}, {"source": "cve@mitre.org", "tags": ["Broken Link"], "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:101"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-1642-1"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79930"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit"], "url": "http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2013:101"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.ubuntu.com/usn/USN-1642-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79930"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0351"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "lynx: Does not verify that the server's certificate is signed by a trusted certification authority", "id": "873262", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=873262"}, "csaw": false, "cvss": {"cvss_base_score": "4.3", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "status": "draft"}, "details": ["Lynx does not verify that the server's certificate is signed by a trusted certification authority, which allows man-in-the-middle attackers to spoof SSL servers via a crafted certificate, related to improper use of a certain GnuTLS function."], "name": "CVE-2012-5821", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "lynx", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "lynx", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2012-10-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2012-5821\nhttps://nvd.nist.gov/vuln/detail/CVE-2012-5821"], "statement": "Not vulnerable. This issue did not affect the versions of lynx as shipped with Red Hat Enterprise Linux 5 and 6 as they were not build against GnuTLS.", "threat_severity": "Moderate"}

{}