{"id":"CVE-2004-2531","aliases":["EUVD-2004-2522","GHSA-2xmw-23qh-mjvr"],"status":"published","title":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16...","description":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys.","severity":{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01685,"percentile":0.77149,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:09:49Z","products":[{"vendor":"gnu","product":"gnutls"}],"references":[{"url":"http://securitytracker.com/id?1010838","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.osvdb.org/8278","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Patch"]},{"url":"http://www.hornik.sk/SA/SA-20040802.txt","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16858","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.securityfocus.com/bid/10839","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch"]},{"url":"http://lists.gnupg.org/pipermail/gnutls-dev/2004-August/000703.html","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://secunia.com/advisories/12156","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-2531"},{"url":"https://github.com/advisories/GHSA-2xmw-23qh-mjvr"}],"sources":{"cve":[{"id":"CVE-2004-2531","description":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys.","status":"published","published":"2005-10-25T04:00:00Z","modified":"2024-08-08T01:29:13.816Z","updated_at":"2026-11-02T14:34:53.70484Z"}],"euvd":[{"id":"EUVD-2004-2522","description":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys.","status":"published","published":"2005-10-25T04:00:00Z","modified":"2024-08-08T01:29:13Z","updated_at":"2026-11-03T01:15:10.048939Z"}],"ghsa":[{"id":"GHSA-2xmw-23qh-mjvr","title":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16...","description":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys.","status":"published","published":"2022-04-29T03:01:38Z","modified":"2023-01-30T05:04:03Z","updated_at":"2026-11-02T14:46:57.954925Z"}],"nvd":[{"id":"CVE-2004-2531","description":"X.509 Certificate Signature Verification in Gnu transport layer security library (GnuTLS) 1.0.16 allows remote attackers to cause a denial of service (CPU consumption) via certificates containing long chains and signed with large RSA keys.","status":"published","published":"2004-12-31T05:00:00Z","modified":"2026-06-16T22:09:49.69Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:53.133049Z"}]}}