CVE-2013-0176

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2013-01-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a \"Client: Diffie-Hellman Key Exchange Init\" packet."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-08-28T12:57:01.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "FEDORA-2013-1407", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html"}, {"name": "libssh-publickeyfromprivatekey-dos(81595)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81595"}, {"name": "51982", "tags": ["third-party-advisory", "x_refsource_SECUNIA"], "url": "http://secunia.com/advisories/51982"}, {"name": "FEDORA-2013-1422", "tags": ["vendor-advisory", "x_refsource_FEDORA"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html"}, {"name": "USN-1707-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-1707-1"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T14:18:09.365Z"}, "title": "CVE Program Container", "references": [{"name": "FEDORA-2013-1407", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html"}, {"name": "libssh-publickeyfromprivatekey-dos(81595)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81595"}, {"name": "51982", "tags": ["third-party-advisory", "x_refsource_SECUNIA", "x_transferred"], "url": "http://secunia.com/advisories/51982"}, {"name": "FEDORA-2013-1422", "tags": ["vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html"}, {"name": "USN-1707-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-1707-1"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2013-0176", "datePublished": "2013-02-05T23:11:00.000Z", "dateReserved": "2012-12-06T00:00:00.000Z", "dateUpdated": "2024-08-06T14:18:09.365Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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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:libssh:libssh:*:*:*:*:*:*:*:*", "matchCriteriaId": "F3619856-CA8F-455D-BC33-E6BA533C4165", "versionEndIncluding": "0.5.3", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:*", "matchCriteriaId": "EA0F1552-63D8-4E97-A44A-EF55E8A330B7", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:*", "matchCriteriaId": "6514D889-F87F-44D1-9C7B-5BE75676DCFF", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:*", "matchCriteriaId": "A80094C5-1273-43AB-9E1E-096D8B0A60BB", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "CF67514C-3240-42A4-9996-21E855104C59", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:*", "matchCriteriaId": "7BBD0BC3-2467-414E-BD82-2A5778B810F9", "vulnerable": true}, {"criteria": "cpe:2.3:a:libssh:libssh:0.5.2:*:*:*:*:*:*:*", "matchCriteriaId": "3D611A20-8A47-43DE-A6EC-90977C227C64", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The publickey_from_privatekey function in libssh before 0.5.4, when no algorithm is matched during negotiations, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a \"Client: Diffie-Hellman Key Exchange Init\" packet."}, {"lang": "es", "value": "La funci\u00f3n publickey_from_privatekey en libssh anterior a v0.5.4, cuando ningun algoritmo coincide durante la negociacion, permite a atacantes remotos causar una denegaci\u00f3n de servicio (referencia NULL y ca\u00edda de la aplicaci\u00f3n) mediante un paquete \"Client: Diffie-Hellman Key Exchange Init\""}], "id": "CVE-2013-0176", "lastModified": "2026-06-16T23:48:54.703", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2013-02-05T23:55:01.850", "references": [{"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html"}, {"source": "secalert@redhat.com", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/51982"}, {"source": "secalert@redhat.com", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1707-1"}, {"source": "secalert@redhat.com", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81595"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098065.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.fedoraproject.org/pipermail/package-announce/2013-February/098094.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/51982"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "http://www.libssh.org/2013/01/22/libssh-0-5-4-security-release/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-1707-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/81595"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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