{"id":"CVE-2002-0656","aliases":["DEBIAN-CVE-2002-0656","DSA-136","DSA-136-1","DSA-136-2","DSA-136-3","EUVD-2002-0650","GHSA-9jw8-9j6r-p392"],"status":"published","title":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote...","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.8982,"percentile":0.99793,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"published":"2002-07-30T00:00:00Z","modified":"2026-10-22T23:47:23Z","exploits":[{"source":"exploitdb","id":"EDB-40347","title":"Apache mod_ssl OpenSSL \u003c 0.9.6d / \u003c 0.9.7-beta2 - 'openssl-too-open.c' SSL2 KEY_ARG Overflow","type":"remote","platform":"unix","date":"2002-09-17","url":"https://www.exploit-db.com/exploits/40347"}],"fixes":[{"ecosystem":"Debian:12","package":"openssl","fixed_in":["0.9.6e-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"openssl","fixed_in":["0.9.6e-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"openssl","fixed_in":["0.9.6e-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.6e-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.6e-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.6e-1"}]}]},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl094","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.4-6.woody.0"}]}],"versions":["0.9.4-6","0.9.4-6.potato.3"],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl095","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.5a-6.woody.0"}]}],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.6c-2.woody.0"}]}],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl094","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.4-6.woody.1"}]}],"versions":["0.9.4-6","0.9.4-6.potato.3"],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl095","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.5a-6.woody.1"}]}],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.6c-2.woody.1"}]}],"bundled":4},{"source":"osv","ecosystem":"Debian:3.0","package":"openssl094","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.4-6.woody.2"}]}],"versions":["0.9.4-6","0.9.4-6.potato.3"],"bundled":4}],"products":[{"vendor":"apple","product":"mac_os_x"},{"vendor":"openssl","product":"openssl"},{"vendor":"oracle","product":"application_server"},{"vendor":"oracle","product":"corporate_time_outlook_connector"},{"vendor":"oracle","product":"http_server"}],"references":[{"url":"http://www.securityfocus.com/bid/5363","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/5362","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.kb.cert.org/vuls/id/102795","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource","web"]},{"url":"http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-046.php","tags":["vendor-advisory","x_refsource_MANDRAKE","x_transferred","web"]},{"url":"ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.0.txt","tags":["vendor-advisory","x_refsource_CALDERA","x_transferred","web"]},{"url":"http://www.kb.cert.org/vuls/id/258555","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource","web"]},{"url":"http://www.iss.net/security_center/static/9714.php","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.cert.org/advisories/CA-2002-23.html","tags":["third-party-advisory","x_refsource_CERT","x_transferred","US Government Resource","advisory"]},{"url":"ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2002-033.1.txt","tags":["vendor-advisory","x_refsource_CALDERA","x_transferred","web"]},{"url":"http://distro.conectiva.com.br/atualizacoes/?id=a\u0026anuncio=000513","tags":["vendor-advisory","x_refsource_CONECTIVA","x_transferred","web"]},{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:33.openssl.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","advisory"]},{"url":"http://www.iss.net/security_center/static/9716.php","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0656"},{"url":"https://github.com/advisories/GHSA-9jw8-9j6r-p392"},{"url":"https://security-tracker.debian.org/tracker/CVE-2002-0656","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2002-0656","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2002-07-31T04:00:00Z","modified":"2024-08-08T02:56:38.489Z","updated_at":"2026-11-02T14:33:55.303902Z"}],"euvd":[{"id":"EUVD-2002-0650","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2002-07-31T04:00:00Z","modified":"2024-08-08T02:56:38Z","updated_at":"2026-11-03T01:14:59.632362Z"}],"ghsa":[{"id":"GHSA-9jw8-9j6r-p392","title":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote...","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2022-05-03T03:07:56Z","modified":"2023-02-01T05:01:03Z","updated_at":"2026-11-02T14:49:39.648637Z"}],"nvd":[{"id":"CVE-2002-0656","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-06-16T21:57:52.81Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:42.827505Z"}],"osv":[{"id":"CVE-2002-0656","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-04-10T03:33:40.681425Z","updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2002-0656","description":"Buffer overflows in OpenSSL 0.9.6d and earlier, and 0.9.7-beta2 and earlier, allow remote attackers to execute arbitrary code via (1) a large client master key in SSL2 or (2) a large session ID in SSL3.","status":"published","published":"2002-08-12T04:00:00Z","modified":"2026-10-22T23:47:23.095841471Z","updated_at":"2026-11-02T15:45:22.248131Z"},{"id":"DSA-136","title":"openssl - multiple remote exploits","status":"withdrawn","published":"2002-07-30T00:00:00Z","modified":"2025-05-26T07:14:03.256221Z","updated_at":"2026-11-02T15:46:14.285228Z"},{"id":"DSA-136-1","title":"openssl - multiple remote exploits","status":"published","published":"2002-07-30T00:00:00Z","modified":"2026-03-09T01:00:52.676663Z","updated_at":"2026-11-02T15:46:14.285228Z"},{"id":"DSA-136-2","title":"openssl - multiple remote exploits","status":"published","published":"2002-09-15T00:00:00Z","modified":"2026-03-09T01:00:49.47484Z","updated_at":"2026-11-02T15:46:14.285228Z"},{"id":"DSA-136-3","title":"openssl - multiple remote exploits","status":"published","published":"2002-09-17T00:00:00Z","modified":"2026-03-09T01:01:37.134938Z","updated_at":"2026-11-02T15:46:14.285228Z"}]}}