{"id":"CVE-2009-0124","aliases":["EUVD-2009-0133","GHSA-2q3r-gf9c-fhv3"],"status":"published","title":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL)...","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.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01324,"percentile":0.71121,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2009-01-15T17:00:00Z","modified":"2026-06-16T23:04:18Z","products":[{"vendor":"arrl","product":"tqsllib"}],"references":[{"url":"http://openwall.com/lists/oss-security/2009/01/12/4","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://secunia.com/advisories/33543","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://www.redhat.com/archives/fedora-package-announce/2009-January/msg00557.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511509","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=479650","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0124"},{"url":"https://github.com/advisories/GHSA-2q3r-gf9c-fhv3"}],"sources":{"cve":[{"id":"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.","status":"published","published":"2009-01-15T17:00:00Z","modified":"2024-08-07T04:24:17.983Z","updated_at":"2026-11-02T14:33:25.896677Z"}],"euvd":[{"id":"EUVD-2009-0133","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.","status":"published","published":"2009-01-15T17:00:00Z","modified":"2024-08-07T04:24:17Z","updated_at":"2026-11-03T01:39:27.128816Z"}],"ghsa":[{"id":"GHSA-2q3r-gf9c-fhv3","title":"The tqsl_verifyDataBlock function in openssl_cert.cpp in American Radio Relay League (ARRL)...","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.","status":"published","published":"2022-05-02T03:12:56Z","modified":"2023-01-31T05:07:01Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:49:08.279119Z"}],"nvd":[{"id":"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.","status":"published","published":"2009-01-15T17:30:00.53Z","modified":"2026-06-16T23:04:18.223Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:01:33.417327Z"}]}}