{"id":"CVE-2001-1180","aliases":["EUVD-2001-1161","GHSA-84r2-3r7c-h628"],"status":"published","title":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows...","description":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.","severity":{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00595,"percentile":0.48699,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2001-07-10T04:00:00Z","modified":"2026-06-16T21:55:44Z","products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://ciac.llnl.gov/ciac/bulletins/l-111.shtml","tags":["third-party-advisory","government-resource","x_refsource_CIAC","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/6829","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.osvdb.org/1897","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred"]},{"url":"http://www.kb.cert.org/vuls/id/943633","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","Patch","Third Party Advisory","US Government Resource"]},{"url":"http://www.securityfocus.com/bid/3007","tags":["vdb-entry","x_refsource_BID","x_transferred","Exploit","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2001-1180"},{"url":"https://github.com/advisories/GHSA-84r2-3r7c-h628"}],"sources":{"cve":[{"id":"CVE-2001-1180","description":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.","status":"published","published":"2002-06-25T04:00:00Z","modified":"2024-08-08T04:44:08.352Z","updated_at":"2026-11-02T14:34:42.680977Z"}],"euvd":[{"id":"EUVD-2001-1161","description":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.","status":"published","published":"2002-06-25T04:00:00Z","modified":"2024-08-08T04:44:08Z","updated_at":"2026-11-03T01:14:48.04102Z"}],"ghsa":[{"id":"GHSA-84r2-3r7c-h628","title":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows...","description":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.","status":"published","published":"2022-05-03T03:07:15Z","modified":"2023-02-01T05:00:59Z","updated_at":"2026-11-02T14:49:38.712812Z"}],"nvd":[{"id":"CVE-2001-1180","description":"FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.","status":"published","published":"2001-07-10T04:00:00Z","modified":"2026-06-16T21:55:44.423Z","cvss":[{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:40.041412Z"}]}}