{"id":"CVE-2009-1755","aliases":["DEBIAN-CVE-2009-1755","DSA-1803-1","EUVD-2009-1750","GHSA-hvfw-j69f-c8f3"],"status":"published","title":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and...","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","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":0.03157,"percentile":0.88059,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-189"],"published":"2009-05-20T00:00:00Z","modified":"2026-10-23T17:47:43Z","fixes":[{"ecosystem":"Debian:12","package":"nsd","fixed_in":["2.3.7-3"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"nsd","fixed_in":["2.3.7-3"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"nsd","fixed_in":["2.3.7-3"],"sources":["osv"]},{"ecosystem":"Debian:4.0","package":"nsd","fixed_in":["2.3.6-1+etch1"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"nsd","fixed_in":["2.3.7-1.1+lenny1"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"nsd3","fixed_in":["3.0.7-3.lenny2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"nsd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7-3"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"nsd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7-3"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"nsd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7-3"}]}]},{"source":"osv","ecosystem":"Debian:4.0","package":"nsd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.6-1+etch1"}]}],"versions":["2.3.6-1"]},{"source":"osv","ecosystem":"Debian:5.0","package":"nsd","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.7-1.1+lenny1"}]}],"versions":["2.3.7-1.1"]},{"source":"osv","ecosystem":"Debian:5.0","package":"nsd3","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.7-3.lenny2"}]}],"versions":["3.0.7-3.lenny1"]}],"products":[{"vendor":"nlnetlabs","product":"nsd"}],"references":[{"url":"http://www.nlnetlabs.nl/publications/NSD_vulnerability_announcement.html","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529420","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=529418","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://www.openwall.com/lists/oss-security/2009/05/19/1","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-1755"},{"url":"https://github.com/advisories/GHSA-hvfw-j69f-c8f3"},{"url":"https://security-tracker.debian.org/tracker/CVE-2009-1755","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2009-1755","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2009-05-22T01:00:00Z","modified":"2024-09-17T03:23:44.786Z","updated_at":"2026-11-02T14:33:25.126493Z"}],"euvd":[{"id":"EUVD-2009-1750","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2009-05-22T01:00:00Z","modified":"2024-09-17T03:23:44Z","updated_at":"2026-11-03T00:28:32.08327Z"}],"ghsa":[{"id":"GHSA-hvfw-j69f-c8f3","title":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and...","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2022-05-02T03:28:14Z","modified":"2023-01-31T05:08:29Z","updated_at":"2026-11-02T14:49:24.252889Z"}],"nvd":[{"id":"CVE-2009-1755","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2009-05-22T11:52:40.547Z","modified":"2026-06-16T23:07:59.43Z","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-189"],"updated_at":"2026-11-02T14:01:35.136779Z"}],"osv":[{"id":"CVE-2009-1755","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2009-05-22T11:52:40Z","modified":"2026-04-10T03:40:46.231918Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2009-1755","description":"Off-by-one error in the packet_read_query_section function in packet.c in nsd 3.2.1, and process_query_section in query.c in nsd 2.3.7, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors that trigger a buffer overflow.","status":"published","published":"2009-05-22T11:52:40.547Z","modified":"2026-10-23T17:47:43.149258562Z","updated_at":"2026-11-02T15:45:24.013654Z"},{"id":"DSA-1803-1","title":"nsd nsd3 - denial of service","status":"published","published":"2009-05-20T00:00:00Z","modified":"2026-03-09T01:17:58.984083Z","updated_at":"2026-11-02T15:46:14.734124Z"}]}}