CVE-2011-1775

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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:tigervnc:tigervnc:1.1:beta1:*:*:*:*:*:*", "matchCriteriaId": "80605C78-6890-4CA3-BB83-0BAF1B103A09", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate."}, {"lang": "es", "value": "La funci\u00f3n CSecurityTLS::processMsg en common/rtb/CSecurityTLS.cxx en el componente vncviewer en tigervnc v1.1beta1 no verifica de forma adecuada el certificado X.509 del servidor, lo que permite a ataques de Hombre en medio (man-in-the-middle) para falsificar un servidor TSL VNC mediante un certificado de su elecci\u00f3n."}], "id": "CVE-2011-1775", "lastModified": "2026-06-16T23:30:00.280", "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}]}, "published": "2011-05-26T18:55:02.287", "references": [{"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2011/05/06/2"}, {"source": "secalert@redhat.com", "url": "http://openwall.com/lists/oss-security/2011/05/09/7"}, {"source": "secalert@redhat.com", "url": "http://secunia.com/advisories/44939"}, {"source": "secalert@redhat.com", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html"}, {"source": "secalert@redhat.com", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html"}, {"source": "secalert@redhat.com", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html"}, {"source": "secalert@redhat.com", "url": "http://www.redhat.com/support/errata/RHSA-2011-0871.html"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/47738"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=702470"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=702672"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2011/05/06/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://openwall.com/lists/oss-security/2011/05/09/7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://secunia.com/advisories/44939"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.redhat.com/support/errata/RHSA-2011-0871.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/47738"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=702470"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=702672"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2011:0871", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "tigervnc-0:1.0.90-0.15.20110314svn4359.el6_1.1", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-06-15T00:00:00Z"}], "bugzilla": {"description": "tigervnc: vncviewer can send password to server without proper validation of the X.509 certificate", "id": "702470", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=702470"}, "csaw": false, "cvss": {"cvss_base_score": "2.6", "cvss_scoring_vector": "AV:N/AC:H/Au:N/C:P/I:N/A:N", "status": "verified"}, "details": ["The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate."], "name": "CVE-2011-1775", "public_date": "2011-05-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-1775\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1775"], "threat_severity": "Moderate"}

{}