{"id":"CVE-2002-1850","aliases":["DEBIAN-CVE-2002-1850","EUVD-2002-1829","GHSA-vfpr-g7cv-3qw9"],"status":"published","title":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a...","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.17408,"percentile":0.97142,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-667"],"published":"2002-12-31T05:00:00Z","modified":"2026-10-23T00:00:26Z","exploits":[{"source":"exploitdb","id":"EDB-21854","title":"Apache 2.0.39/40 - Oversized STDERR Buffer Denial of Service","type":"dos","platform":"linux","date":"2002-09-24","verified":true,"url":"https://www.exploit-db.com/exploits/21854"}],"fixes":[{"ecosystem":"Debian:12","package":"apache2","fixed_in":["2.0.42-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"apache2","fixed_in":["2.0.42-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"apache2","fixed_in":["2.0.42-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.42-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.42-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"apache2","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.42-1"}]}]}],"products":[{"vendor":"apache","product":"http_server"}],"references":[{"url":"http://securitytracker.com/id?1007823","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Patch","Third Party Advisory","VDB Entry","advisory","fix","web"]},{"url":"http://seclists.org/bugtraq/2002/Sep/0253.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Mailing List","Third Party Advisory","advisory","article","evidence"]},{"url":"http://cvs.apache.org/viewcvs.cgi/httpd-2.0/modules/generators/mod_cgi.c?r1=1.148.2.7\u0026r2=1.148.2.8","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","web"]},{"url":"http://www.securityfocus.com/bid/8725","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Patch","Third Party Advisory","VDB Entry","advisory","fix","web"]},{"url":"http://issues.apache.org/bugzilla/show_bug.cgi?id=10515","tags":["x_refsource_MISC","x_transferred","Issue Tracking","report"]},{"url":"http://www.iss.net/security_center/static/10200.php","tags":["vdb-entry","x_refsource_XF","x_transferred","Broken Link","Patch","fix","web"]},{"url":"http://www.securityfocus.com/bid/5787","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Exploit","Third Party Advisory","VDB Entry","advisory","evidence","web"]},{"url":"http://marc.info/?l=apache-httpd-dev\u0026m=103291952019514\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","article"]},{"url":"http://issues.apache.org/bugzilla/show_bug.cgi?id=22030","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Patch","fix","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-1850"},{"url":"https://github.com/advisories/GHSA-vfpr-g7cv-3qw9"},{"url":"https://security-tracker.debian.org/tracker/CVE-2002-1850","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2002-1850","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2005-06-28T04:00:00Z","modified":"2024-08-08T03:43:32.8Z","updated_at":"2026-11-02T14:33:54.641433Z"}],"euvd":[{"id":"EUVD-2002-1829","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2005-06-28T04:00:00Z","modified":"2024-08-08T03:43:32Z","updated_at":"2026-11-03T01:14:54.820731Z"}],"ghsa":[{"id":"GHSA-vfpr-g7cv-3qw9","title":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a...","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2022-04-30T18:22:01Z","modified":"2024-02-09T00:31:32Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-667"],"updated_at":"2026-11-02T14:55:34.624515Z"}],"nvd":[{"id":"CVE-2002-1850","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-06-16T22:00:10.367Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-667"],"updated_at":"2026-11-02T14:00:43.239725Z"}],"osv":[{"id":"CVE-2002-1850","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-04-10T03:36:01.995899Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:43:55.998148Z"},{"id":"DEBIAN-CVE-2002-1850","description":"mod_cgi in Apache 2.0.39 and 2.0.40 allows local users and possibly remote attackers to cause a denial of service (hang and memory consumption) by causing a CGI script to send a large amount of data to stderr, which results in a read/write deadlock between httpd and the CGI script.","status":"published","published":"2002-12-31T05:00:00Z","modified":"2026-10-23T00:00:26.699096848Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:22.248131Z"}]}}