{"id":"CVE-2006-3121","aliases":["DEBIAN-CVE-2006-3121","DSA-1151-1","EUVD-2006-3118","GHSA-qj99-gqqj-q94c"],"status":"published","title":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability...","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","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":0.13589,"percentile":0.96489,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-399"],"published":"2006-08-15T00:00:00Z","modified":"2026-10-22T23:47:22Z","exploits":[{"source":"exploitdb","id":"EDB-28386","title":"Linux-HA Heartbeat 2.0.6 - Remote Denial of Service","type":"dos","platform":"linux","date":"2006-08-13","verified":true,"url":"https://www.exploit-db.com/exploits/28386"}],"fixes":[{"ecosystem":"Debian:12","package":"heartbeat","fixed_in":["1.2.4-14"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"heartbeat","fixed_in":["1.2.4-14"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"heartbeat","fixed_in":["1.2.4-14"],"sources":["osv"]},{"ecosystem":"Debian:3.1","package":"heartbeat","fixed_in":["1.2.3-9sarge6"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"heartbeat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.4-14"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"heartbeat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.4-14"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"heartbeat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.4-14"}]}]},{"source":"osv","ecosystem":"Debian:3.1","package":"heartbeat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.3-9sarge6"}]}],"versions":["1.2.3-9","1.2.3-9sarge1","1.2.3-9sarge2","1.2.3-9sarge3","1.2.3-9sarge4","1.2.3-9sarge5"]}],"products":[{"vendor":"high_availability_linux_project","product":"heartbeat"}],"references":[{"url":"http://security.gentoo.org/glsa/glsa-200608-23.xml","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/21629","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/21511","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://secunia.com/advisories/21505","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/19516","tags":["vdb-entry","x_refsource_BID","x_transferred","Patch","fix"]},{"url":"http://www.linux-ha.org/_cache/SecurityIssues__sec03.txt","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/21518","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2006:142","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/28396","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://www.debian.org/security/2006/dsa-1151","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Patch","fix"]},{"url":"http://www.linux-ha.org/SecurityIssues","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://www.vupen.com/english/advisories/2006/3288","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/usn-335-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/21521","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2006-3121"},{"url":"https://github.com/advisories/GHSA-qj99-gqqj-q94c"},{"url":"https://security-tracker.debian.org/tracker/CVE-2006-3121","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2006-3121","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2006-08-17T01:00:00Z","modified":"2024-08-07T18:16:05.935Z","updated_at":"2026-11-02T14:33:50.024504Z"}],"euvd":[{"id":"EUVD-2006-3118","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2006-08-17T01:00:00Z","modified":"2024-08-07T18:16:05Z","updated_at":"2026-11-03T01:15:57.635752Z"}],"ghsa":[{"id":"GHSA-qj99-gqqj-q94c","title":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability...","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2022-05-01T07:05:53Z","modified":"2023-01-31T05:01:40Z","updated_at":"2026-11-02T14:48:06.332577Z"}],"nvd":[{"id":"CVE-2006-3121","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2006-08-17T01:04:00Z","modified":"2026-06-16T22:26:26.733Z","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":"2026-11-02T14:01:05.130518Z"}],"osv":[{"id":"CVE-2006-3121","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2006-08-17T01:04:00Z","modified":"2026-04-10T03:38:28.42574Z","updated_at":"2026-11-02T15:43:56.581247Z"},{"id":"DEBIAN-CVE-2006-3121","description":"The peel_netstring function in cl_netstring.c in the heartbeat subsystem in High-Availability Linux before 1.2.5, and 2.0 before 2.0.7, allows remote attackers to cause a denial of service (crash) via the length parameter in a heartbeat message.","status":"published","published":"2006-08-17T01:04:00Z","modified":"2026-10-22T23:47:22.123687927Z","updated_at":"2026-11-02T15:45:23.105674Z"},{"id":"DSA-1151-1","title":"heartbeat - out-of-bounds read","status":"published","published":"2006-08-15T00:00:00Z","modified":"2026-03-09T01:00:53.924434Z","updated_at":"2026-11-02T15:46:14.285228Z"}]}}