{"id":"CVE-2009-0751","aliases":["DEBIAN-CVE-2009-0751","DSA-1740-1","EUVD-2009-0751","GHSA-9574-q3cv-v9f8"],"status":"published","title":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and...","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.10397,"percentile":0.95762,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-399"],"published":"2009-03-02T22:00:00Z","modified":"2026-10-23T17:47:50Z","exploits":[{"source":"exploitdb","id":"EDB-8148","title":"Yaws \u003c 1.80 - Multiple Headers Remote Denial of Service Vulnerabilities","type":"dos","platform":"multiple","date":"2009-03-03","verified":true,"url":"https://www.exploit-db.com/exploits/8148"}],"fixes":[{"ecosystem":"Debian:12","package":"yaws","fixed_in":["1.80-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"yaws","fixed_in":["1.80-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"yaws","fixed_in":["1.80-1"],"sources":["osv"]},{"ecosystem":"Debian:4.0","package":"yaws","fixed_in":["1.65-4etch1"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"yaws","fixed_in":["1.77-3+lenny1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.80-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.80-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.80-1"}]}]},{"source":"osv","ecosystem":"Debian:4.0","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.65-4etch1"}]}],"versions":["1.65-4"]},{"source":"osv","ecosystem":"Debian:5.0","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.77-3+lenny1"}]}],"versions":["1.77-3"]}],"products":[{"vendor":"yaws","product":"yaws"}],"references":[{"url":"http://secunia.com/advisories/33979","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/0590","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2009/02/19/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://secunia.com/advisories/34239","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.debian.org/security/2009/dsa-1740","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://www.exploit-db.com/exploits/8148","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","web"]},{"url":"http://yaws.hyber.org/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/33834","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-0751"},{"url":"http://yaws.hyber.org"},{"url":"https://github.com/advisories/GHSA-9574-q3cv-v9f8"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-0751","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-0751","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2009-03-02T22:00:00Z","modified":"2024-08-07T04:48:51.775Z","updated_at":"2026-11-02T14:33:26.302774Z"}],"euvd":[{"id":"EUVD-2009-0751","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2009-03-02T22:00:00Z","modified":"2024-08-07T04:48:51Z","updated_at":"2026-11-03T01:39:24.749817Z"}],"ghsa":[{"id":"GHSA-9574-q3cv-v9f8","title":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and...","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2022-05-02T03:17:55Z","modified":"2025-04-09T04:06:55Z","updated_at":"2026-11-02T15:00:59.52588Z"}],"nvd":[{"id":"CVE-2009-0751","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2009-03-02T22:30:00.25Z","modified":"2026-06-16T23:05:43.857Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:01:34.44527Z"}],"osv":[{"id":"CVE-2009-0751","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2009-03-02T22:30:00Z","modified":"2026-04-10T03:40:39.009274Z","updated_at":"2026-11-02T15:43:57.452479Z"},{"id":"DEBIAN-CVE-2009-0751","description":"Yaws before 1.80 allows remote attackers to cause a denial of service (memory consumption and crash) via a request with a large number of headers.","status":"published","published":"2009-03-02T22:30:00.25Z","modified":"2026-10-23T17:47:50.149691355Z","updated_at":"2026-11-02T15:45:24.013654Z"},{"id":"DSA-1740-1","title":"yaws - denial of service","status":"published","published":"2009-03-14T00:00:00Z","modified":"2026-03-09T01:19:30.660732Z","updated_at":"2026-11-02T15:46:14.734124Z"}]}}