{"id":"CVE-2010-0303","aliases":["DEBIAN-CVE-2010-0303","DSA-1982-1","EUVD-2010-0334","GHSA-74jg-v6qv-47p6"],"status":"published","title":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote...","description":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote attackers to cause a denial of service (daemon crash) via a \":help \\t\" private message to the MemoServ service.","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":0.0806,"percentile":0.94831,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-20"],"published":"2010-01-29T00:00:00Z","modified":"2026-06-16T23:15:53Z","exploits":[{"source":"exploitdb","id":"EDB-33581","title":"Hybserv2 - ':help' Denial of Service","type":"dos","platform":"linux","date":"2010-01-29","verified":true,"url":"https://www.exploit-db.com/exploits/33581"}],"fixes":[{"ecosystem":"Debian:4.0","package":"hybserv","fixed_in":["1.9.2-4+etch1"],"sources":["osv"]},{"ecosystem":"Debian:5.0","package":"hybserv","fixed_in":["1.9.2-4+lenny2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:4.0","package":"hybserv","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-4+etch1"}]}],"versions":["1.9.2-4"]},{"source":"osv","ecosystem":"Debian:5.0","package":"hybserv","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.2-4+lenny2"}]}],"versions":["1.9.2-4","1.9.2-4+etch1"]}],"products":[{"vendor":"dinko_korunic","product":"hybserv2"}],"references":[{"url":"http://www.securityfocus.com/bid/38006","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://security.debian.org/pool/updates/main/h/hybserv/hybserv_1.9.2-4+lenny2.diff.gz","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/55992","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://marc.info/?l=oss-security\u0026m=126476591925300\u0026w=2","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"http://secunia.com/advisories/38350","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.debian.org/security/2010/dsa-1982","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred"]},{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=550389","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://secunia.com/advisories/38352","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-0303"},{"url":"https://github.com/advisories/GHSA-74jg-v6qv-47p6"}],"sources":{"cve":[{"id":"CVE-2010-0303","description":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote attackers to cause a denial of service (daemon crash) via a \":help \\t\" private message to the MemoServ service.","status":"published","published":"2010-02-04T18:00:00Z","modified":"2024-08-07T00:45:11.975Z","updated_at":"2026-11-02T14:33:29.990758Z"}],"euvd":[{"id":"EUVD-2010-0334","description":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote attackers to cause a denial of service (daemon crash) via a \":help \\t\" private message to the MemoServ service.","status":"published","published":"2010-02-04T18:00:00Z","modified":"2024-08-07T00:45:11Z","updated_at":"2026-11-03T01:39:45.66674Z"}],"ghsa":[{"id":"GHSA-74jg-v6qv-47p6","title":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote...","description":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote attackers to cause a denial of service (daemon crash) via a \":help \\t\" private message to the MemoServ service.","status":"published","published":"2022-05-02T06:11:28Z","modified":"2023-02-01T05:00:30Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:32.85027Z"}],"nvd":[{"id":"CVE-2010-0303","description":"mystring.c in hybserv in IRCD-Hybrid (aka Hybrid2 IRC Services) 1.9.2 through 1.9.4 allows remote attackers to cause a denial of service (daemon crash) via a \":help \\t\" private message to the MemoServ service.","status":"published","published":"2010-02-04T20:15:23.937Z","modified":"2026-06-16T23:15:53.757Z","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-20"],"updated_at":"2026-11-02T14:01:40.249593Z"}],"osv":[{"id":"DSA-1982-1","title":"hybserv - denial of service","status":"published","published":"2010-01-29T00:00:00Z","modified":"2026-03-09T01:19:28.990932Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}