{"id":"CVE-2011-4362","aliases":["DEBIAN-CVE-2011-4362","DSA-2368-1","EUVD-2011-4292","GHSA-wx9r-x448-8rcp","openSUSE-SU-2024:10402-1"],"status":"published","title":"Integer signedness error in the base64_decode function in the HTTP authentication functionality ...","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","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":"2026-11-09","score":0.21106,"percentile":0.97594,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"published":"2011-12-20T00:00:00Z","modified":"2026-10-23T17:47:29Z","exploits":[{"source":"exploitdb","id":"EDB-18295","title":"lighttpd - Denial of Service (PoC)","type":"dos","platform":"linux","date":"2011-12-31","verified":true,"url":"https://www.exploit-db.com/exploits/18295"}],"fixes":[{"ecosystem":"Debian:12","package":"lighttpd","fixed_in":["1.4.30-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"lighttpd","fixed_in":["1.4.30-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"lighttpd","fixed_in":["1.4.30-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.30-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.30-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.30-1"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.28-2+squeeze1"}]}],"versions":["1.4.28-2"],"bundled":2},{"source":"osv","ecosystem":"Debian:5.0","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.19-5+lenny3"}]}],"versions":["1.4.19-5","1.4.19-5+lenny1","1.4.19-5+lenny2"],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"lighttpd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.37-1.6"}]}],"bundled":8}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"lighttpd","product":"lighttpd"}],"references":[{"url":"http://secunia.com/advisories/47260","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Third Party Advisory","advisory"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Broken Link","web"]},{"url":"http://www.openwall.com/lists/oss-security/2011/11/29/8","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","Mailing List","Patch","Third Party Advisory","advisory","article","evidence","fix"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=758624","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","advisory","report"]},{"url":"http://www.debian.org/security/2011/dsa-2368","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"http://www.exploit-db.com/exploits/18295","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry","advisory","evidence"]},{"url":"http://blog.pi3.com.pl/?p=277","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","advisory","evidence"]},{"url":"http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Vendor Advisory","advisory","evidence","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2011/11/29/13","tags":["mailing-list","x_refsource_MLIST","x_transferred","Exploit","Mailing List","Patch","Third Party Advisory","advisory","article","evidence","fix"]},{"url":"http://www.securitytracker.com/id?1026359","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/71536","tags":["vdb-entry","x_refsource_XF","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://redmine.lighttpd.net/issues/2370","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Vendor Advisory","advisory","evidence","fix"]},{"url":"http://jvn.jp/en/jp/JVN37417423/index.html","tags":["third-party-advisory","x_refsource_JVN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4362"},{"url":"https://github.com/advisories/GHSA-wx9r-x448-8rcp"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4362","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2010-0295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4362","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5533","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-4508","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-4559","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-4560","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-2323","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-2324","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2011-4362","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2011-12-24T19:00:00Z","modified":"2024-08-07T00:09:18.36Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4292","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2011-12-24T19:00:00Z","modified":"2024-08-07T00:09:18Z","updated_at":"2026-11-03T01:39:48.961231Z"}],"ghsa":[{"id":"GHSA-wx9r-x448-8rcp","title":"Integer signedness error in the base64_decode function in the HTTP authentication functionality ...","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2022-05-13T01:11:30Z","modified":"2023-02-01T05:03:52Z","updated_at":"2026-11-02T14:50:06.799159Z"}],"nvd":[{"id":"CVE-2011-4362","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2011-12-24T19:55:05.24Z","modified":"2026-06-16T23:34:50.717Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:11.800512Z"}],"osv":[{"id":"CVE-2011-4362","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2011-12-24T19:55:05Z","modified":"2026-04-10T03:42:04.959079Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4362","description":"Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.","status":"published","published":"2011-12-24T19:55:05.24Z","modified":"2026-10-23T17:47:29.091899085Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"DSA-2368-1","title":"lighttpd - several","status":"published","published":"2011-12-20T00:00:00Z","modified":"2026-03-09T01:20:49.742356Z","updated_at":"2026-11-02T15:46:15.108335Z"},{"id":"openSUSE-SU-2024:10402-1","title":"lighttpd-1.4.37-1.6 on GA media","description":"These are all security issues fixed in the lighttpd-1.4.37-1.6 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T02:30:23.176601Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}