{"id":"CVE-2009-4495","aliases":["DEBIAN-CVE-2009-4495","EUVD-2009-4461","GHSA-5c66-p5v7-wjxg","UBUNTU-CVE-2009-4495"],"status":"published","title":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might...","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.09804,"percentile":0.95585,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-20"],"published":"2010-01-13T20:00:00Z","modified":"2026-11-03T21:17:14Z","exploits":[{"source":"exploitdb","id":"EDB-33502","title":"Yaws 1.55 - 'Logs' Terminal Escape Sequence Command Injection","type":"remote","platform":"windows","date":"2010-01-11","verified":true,"url":"https://www.exploit-db.com/exploits/33502"}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.1+dfsg-2","2.1.1+dfsg-2.1","2.2.0+dfsg-1","2.2.0+dfsg-2","2.2.0+dfsg-3","2.3.0+dfsg-1","2.3.1+dfsg-1","2.3.1+dfsg-2"]},{"source":"osv","ecosystem":"Debian:13","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0+dfsg-2","2.2.0+dfsg-3","2.3.0+dfsg-1","2.3.1+dfsg-1","2.3.1+dfsg-2"]},{"source":"osv","ecosystem":"Debian:14","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0+dfsg-2","2.2.0+dfsg-3","2.3.0+dfsg-1","2.3.1+dfsg-1","2.3.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.98-5","1.99-1","1.99-2","2.0.2-1","2.0.2-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.4+dfsg-2","2.0.4+dfsg-2ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.6+dfsg-1","2.0.6+dfsg-3","2.0.7+dfsg-1","2.0.7+dfsg-1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.8+dfsg-3","2.0.9+dfsg-1","2.1.0+dfsg-1","2.1.1+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0+dfsg-2build1","2.3.1+dfsg-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"yaws","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.0+dfsg-2","2.2.0+dfsg-2build1"]}],"products":[{"vendor":"yaws","product":"yaws"}],"references":[{"url":"http://www.securityfocus.com/bid/37716","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","evidence"]},{"url":"http://www.ush.it/team/ush/hack_httpd_escape/adv.txt","tags":["x_refsource_MISC","x_transferred","Exploit","evidence"]},{"url":"http://www.securityfocus.com/archive/1/508830/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4495"},{"url":"https://github.com/advisories/GHSA-5c66-p5v7-wjxg"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-4495","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2009-4495","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2009-4495","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2009-4495","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:00:00Z","modified":"2024-08-07T07:01:20.425Z","updated_at":"2026-11-02T14:33:24.451733Z"}],"euvd":[{"id":"EUVD-2009-4461","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:00:00Z","modified":"2024-08-07T07:01:20Z","updated_at":"2026-11-03T01:39:10.134983Z"}],"ghsa":[{"id":"GHSA-5c66-p5v7-wjxg","title":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might...","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2022-05-02T03:55:16Z","modified":"2023-01-31T05:09:33Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:31.299187Z"}],"nvd":[{"id":"CVE-2009-4495","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:30:00.623Z","modified":"2026-06-16T23:13:46.553Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:38.33745Z"}],"osv":[{"id":"CVE-2009-4495","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:30:00Z","modified":"2026-04-10T03:41:02.701146Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2009-4495","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:30:00.623Z","modified":"2026-10-23T17:47:39.778507873Z","updated_at":"2026-11-02T15:45:24.013654Z"},{"id":"UBUNTU-CVE-2009-4495","description":"Yaws 1.85 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator.","status":"published","published":"2010-01-13T20:30:00Z","modified":"2026-11-03T21:17:14.174843638Z","updated_at":"2026-11-03T21:44:00.661154Z"}]}}