{"id":"CVE-2008-4310","aliases":["EUVD-2022-5565","GHSA-wfrc-r6c6-7j9r","RHSA-2008:0981"],"status":"published","title":"WEBrick Denial of Service Vulnerability","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","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":0.13553,"percentile":0.96483,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-399","CWE-400"],"published":"2008-12-09T00:00:00Z","modified":"2026-06-26T12:18:43Z","exploits":[{"source":"exploitdb","id":"EDB-32222","title":"Ruby 1.9 - 'WEBrick::HTTP::DefaultFileHandler' Crafted HTTP Request Denial of Service","type":"dos","platform":"multiple","date":"2008-08-11","verified":true,"url":"https://www.exploit-db.com/exploits/32222"}],"fixes":[{"ecosystem":"RubyGems","package":"webrick","fixed_in":["1.3.1"],"sources":["ghsa","osv"]},{"ecosystem":"Red Hat:enterprise_linux:4::as","package":"irb","fixed_in":["0:1.8.1-7.el4_7.2"],"sources":["osv"]},{"ecosystem":"Red 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Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2008-4310","tags":["advisory"]},{"url":"https://github.com/ruby/webrick/commit/b2ccd5ff7ddd67a4548299e110dcc5a4728a5534","tags":["web"]},{"url":"https://web.archive.org/web/20111230125610/http://secunia.com/advisories/33013","tags":["web"]},{"url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/webrick/CVE-2008-4310.yml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-wfrc-r6c6-7j9r"},{"url":"https://github.com/ruby/webrick","tags":["package"]},{"url":"https://access.redhat.com/errata/RHSA-2008:0981","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2008/rhsa-2008_0981.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2008-4310","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2008-4310","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2008-4310","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","status":"published","published":"2008-12-09T00:00:00Z","modified":"2024-08-07T10:08:35.153Z","updated_at":"2026-11-02T14:34:46.950176Z"}],"euvd":[{"id":"EUVD-2022-5565","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","status":"published","published":"2008-12-09T00:00:00Z","modified":"2024-08-07T10:08:35Z","updated_at":"2026-11-03T01:38:48.473956Z"}],"ghsa":[{"id":"GHSA-wfrc-r6c6-7j9r","title":"WEBrick Denial of Service Vulnerability","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","status":"published","published":"2022-05-02T00:08:51Z","modified":"2024-02-09T21:52:34Z","cwes":["CWE-400"],"updated_at":"2026-11-02T14:37:37.394986Z"}],"nvd":[{"id":"CVE-2008-4310","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","status":"published","published":"2008-12-09T00:30:00.22Z","modified":"2026-06-16T22:57:34.71Z","cvss":[{"version":"2.0","score":7.8,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:30.411919Z"}],"osv":[{"id":"GHSA-wfrc-r6c6-7j9r","title":"WEBrick Denial of Service Vulnerability","description":"httputils.rb in WEBrick in Ruby 1.8.1 and 1.8.5, as used in Red Hat Enterprise Linux 4 and 5, allows remote attackers to cause a denial of service (CPU consumption) via a crafted HTTP request.  NOTE: this issue exists because of an incomplete fix for CVE-2008-3656.","status":"published","published":"2022-05-02T00:08:51Z","modified":"2024-02-09T21:52:33Z","cwes":["CWE-400"],"updated_at":"2026-11-02T15:46:58.767335Z"},{"id":"RHSA-2008:0981","title":"Red Hat Security Advisory: ruby security update","status":"published","published":"2024-09-15T17:36:54Z","modified":"2026-06-26T12:18:43.264108153Z","updated_at":"2026-11-02T15:53:00.468834Z"}]}}