{"id":"CVE-2002-0839","aliases":["DSA-187","DSA-188","DSA-195","EUVD-2002-0831","GHSA-6hh5-x52p-p482"],"status":"published","title":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user...","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","severity":{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00944,"percentile":0.61283,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2002-10-05T04:00:00Z","modified":"2026-06-16T21:58:14Z","affected":[{"source":"osv","ecosystem":"Debian:3.0","package":"apache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.26-0woody"}]}],"bundled":5},{"source":"osv","ecosystem":"Debian:3.0","package":"apache-ssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.26.1+1.48-0woody3"}]}],"bundled":5},{"source":"osv","ecosystem":"Debian:3.0","package":"apache-perl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.26-1-1.26-0woody2"}]}],"bundled":5}],"products":[{"vendor":"apache","product":"http_server"},{"vendor":"debian","product":"debian_linux"}],"references":[{"url":"http://www.debian.org/security/2002/dsa-188","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory"]},{"url":"http://marc.info/?l=apache-httpd-announce\u0026m=103367938230488\u0026w=2","tags":["x_refsource_CONFIRM","x_transferred","Mailing List","Third Party Advisory"]},{"url":"http://www.linuxsecurity.com/advisories/other_advisory-2414.html","tags":["vendor-advisory","x_refsource_ENGARDE","x_transferred","Broken Link"]},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20021105-01-I","tags":["vendor-advisory","x_refsource_SGI","x_transferred","Broken Link"]},{"url":"http://online.securityfocus.com/advisories/4617","tags":["vendor-advisory","x_refsource_HP","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.debian.org/security/2002/dsa-187","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory"]},{"url":"http://marc.info/?l=bugtraq\u0026m=130497311408250\u0026w=2","tags":["vendor-advisory","x_refsource_HP","x_transferred","Issue Tracking","Mailing List","Third Party 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Link"]},{"url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/rd00b45b93fda4a5bd013b28587207d0e00f99f6e3308dbb6025f3b01%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r8c9983f1172a3415f915ddb7e14de632d2d0c326eb1285755a024165%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2002-0839"},{"url":"https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/r8c9983f1172a3415f915ddb7e14de632d2d0c326eb1285755a024165@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rd00b45b93fda4a5bd013b28587207d0e00f99f6e3308dbb6025f3b01@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E"},{"url":"https://github.com/advisories/GHSA-6hh5-x52p-p482"}],"sources":{"cve":[{"id":"CVE-2002-0839","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","status":"published","published":"2002-10-05T04:00:00Z","modified":"2024-08-08T03:03:49.28Z","updated_at":"2026-11-02T14:33:55.642267Z"}],"euvd":[{"id":"EUVD-2002-0831","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","status":"published","published":"2002-10-05T04:00:00Z","modified":"2024-08-08T03:03:49Z","updated_at":"2026-11-03T01:14:58.693075Z"}],"ghsa":[{"id":"GHSA-6hh5-x52p-p482","title":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user...","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","status":"published","published":"2022-05-03T03:08:01Z","modified":"2023-02-01T05:01:04Z","updated_at":"2026-11-02T14:49:39.648637Z"}],"nvd":[{"id":"CVE-2002-0839","description":"The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.","status":"published","published":"2002-10-11T04:00:00Z","modified":"2026-06-16T21:58:14.063Z","cvss":[{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:42.827505Z"}],"osv":[{"id":"DSA-187","title":"apache - several vulnerabilities","status":"published","published":"2002-11-04T00:00:00Z","modified":"2026-03-09T01:22:29.519282Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"DSA-188","title":"apache-ssl - several vulnerabilities","status":"published","published":"2002-11-05T00:00:00Z","modified":"2026-03-09T01:21:32.914006Z","updated_at":"2026-11-02T15:46:14.734124Z"},{"id":"DSA-195","title":"apache-perl - several vulnerabilities","status":"published","published":"2002-11-13T00:00:00Z","modified":"2026-03-09T01:22:17.880663Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}