{"api_version":"1","generated_at":"2026-07-23T08:40:31+00:00","cve":"CVE-2009-0124","urls":{"html":"https://cve.report/CVE-2009-0124","api":"https://cve.report/api/cve/CVE-2009-0124.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2009-0124","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2009-0124"},"summary":{"title":"CVE-2009-0124","description":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","state":"PUBLISHED","assigner":"mitre","published_at":"2009-01-15 17:30:00","updated_at":"2026-04-23 00:35:47"},"problem_types":["CWE-287","n/a"],"metrics":[{"version":"2.0","source":"nvd@nist.gov","type":"Primary","score":"5","severity":"","vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","data":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"}}],"references":[{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509","name":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit"],"title":"#511509 - tqsllib: Improper checking of the return value of EVP_VerifyFinal() - Debian Bug report logs","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://openwall.com/lists/oss-security/2009/01/12/4","name":"http://openwall.com/lists/oss-security/2009/01/12/4","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"oss-security - CVE Request -- tsqllib, slurm-llnl, libnasl,\n\tlibcrypt-openssl-dsa-perl, erlang, boinc-client, m2crypto","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html","name":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"[SECURITY] Fedora 9 Update: tqsllib-2.0-5.fc9","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=479650","name":"https://bugzilla.redhat.com/show_bug.cgi?id=479650","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Bug 479650 – CVE-2009-0124 tqsllib: OpenSSL incorrect checks for malformed signatures","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"http://secunia.com/advisories/33543","name":"http://secunia.com/advisories/33543","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"Fedora update for tqsllib - Secunia.com","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-0124","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0124","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"n/a","product":"n/a","version":"affected n/a","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2009","cve_id":"124","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"arrl","cpe5":"tqsllib","cpe6":"2.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-07T04:24:17.983Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"[oss-security] 20090112 CVE Request -- tsqllib, slurm-llnl, libnasl, libcrypt-openssl-dsa-perl, erlang, boinc-client, m2crypto","tags":["mailing-list","x_refsource_MLIST","x_transferred"],"url":"http://openwall.com/lists/oss-security/2009/01/12/4"},{"name":"33543","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"],"url":"http://secunia.com/advisories/33543"},{"name":"FEDORA-2009-0543","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"],"url":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html"},{"tags":["x_refsource_MISC","x_transferred"],"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509"},{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=479650"}],"title":"CVE Program Container"}],"cna":{"affected":[{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2009-01-12T00:00:00.000Z","descriptions":[{"lang":"en","value":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077."}],"problemTypes":[{"descriptions":[{"description":"n/a","lang":"en","type":"text"}]}],"providerMetadata":{"dateUpdated":"2009-02-06T10:00:00.000Z","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","shortName":"mitre"},"references":[{"name":"[oss-security] 20090112 CVE Request -- tsqllib, slurm-llnl, libnasl, libcrypt-openssl-dsa-perl, erlang, boinc-client, m2crypto","tags":["mailing-list","x_refsource_MLIST"],"url":"http://openwall.com/lists/oss-security/2009/01/12/4"},{"name":"33543","tags":["third-party-advisory","x_refsource_SECUNIA"],"url":"http://secunia.com/advisories/33543"},{"name":"FEDORA-2009-0543","tags":["vendor-advisory","x_refsource_FEDORA"],"url":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html"},{"tags":["x_refsource_MISC"],"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509"},{"tags":["x_refsource_CONFIRM"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=479650"}],"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2009-0124","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"[oss-security] 20090112 CVE Request -- tsqllib, slurm-llnl, libnasl, libcrypt-openssl-dsa-perl, erlang, boinc-client, m2crypto","refsource":"MLIST","url":"http://openwall.com/lists/oss-security/2009/01/12/4"},{"name":"33543","refsource":"SECUNIA","url":"http://secunia.com/advisories/33543"},{"name":"FEDORA-2009-0543","refsource":"FEDORA","url":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html"},{"name":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509","refsource":"MISC","url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509"},{"name":"https://bugzilla.redhat.com/show_bug.cgi?id=479650","refsource":"CONFIRM","url":"https://bugzilla.redhat.com/show_bug.cgi?id=479650"}]}}}},"cveMetadata":{"assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","assignerShortName":"mitre","cveId":"CVE-2009-0124","datePublished":"2009-01-15T17:00:00.000Z","dateReserved":"2009-01-15T00:00:00.000Z","dateUpdated":"2024-08-07T04:24:17.983Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"nvd":{"publishedDate":"2009-01-15 17:30:00","lastModifiedDate":"2026-04-23 00:35:47","problem_types":["CWE-287","n/a"],"metrics":{"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:N/A:N","baseScore":5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE"},"baseSeverity":"MEDIUM","exploitabilityScore":10,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:arrl:tqsllib:2.0:*:*:*:*:*:*:*","matchCriteriaId":"C502AE9C-127A-4E16-A442-306C4FE00796"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2009","CveId":"124","Ordinal":"1","Title":"CVE-2009-0124","CVE":"CVE-2009-0124","Year":"2009"},"notes":[{"CveYear":"2009","CveId":"124","Ordinal":"1","NoteData":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL) tqsllib 2.0 does not properly check the return value from the OpenSSL EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077.","Type":"Description","Title":"CVE-2009-0124"},{"CveYear":"2009","CveId":"124","Ordinal":"2","NoteData":"2009-01-15","Type":"Other","Title":"Published"},{"CveYear":"2009","CveId":"124","Ordinal":"3","NoteData":"2009-02-06","Type":"Other","Title":"Modified"}]}}}