{"id":"CVE-2016-1887","aliases":["EUVD-2016-2981","GHSA-hmmj-vx9q-w3g8"],"status":"published","title":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1...","description":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01111,"percentile":0.66161,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-264"],"published":"2016-05-25T15:00:00Z","modified":"2026-06-17T00:42:48Z","exploits":[{"source":"exploitdb","id":"EDB-44212","title":"FreeBSD Kernel (FreeBSD 10.2 x64) - 'sendmsg' Kernel Heap Overflow (PoC)","type":"dos","platform":"freebsd_x86-64","date":"2016-05-29","url":"https://www.exploit-db.com/exploits/44212"}],"products":[{"vendor":"freebsd","product":"freebsd"}],"references":[{"url":"http://cturt.github.io/sendmsg.html","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://security.FreeBSD.org/advisories/FreeBSD-SA-16:19.sendmsg.asc","tags":["vendor-advisory","x_refsource_FREEBSD","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1035906","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-1887"},{"url":"https://github.com/advisories/GHSA-hmmj-vx9q-w3g8"}],"sources":{"cve":[{"id":"CVE-2016-1887","description":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.","status":"published","published":"2016-05-25T15:00:00Z","modified":"2024-08-05T23:10:39.995Z","updated_at":"2026-11-02T14:33:35.841056Z"}],"euvd":[{"id":"EUVD-2016-2981","description":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.","status":"published","published":"2016-05-25T15:00:00Z","modified":"2024-08-05T23:10:39Z","updated_at":"2026-11-03T02:22:55.519158Z"}],"ghsa":[{"id":"GHSA-hmmj-vx9q-w3g8","title":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1...","description":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.","status":"published","published":"2022-05-17T03:54:50Z","modified":"2023-01-28T05:00:44Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:43:23.885547Z"}],"nvd":[{"id":"CVE-2016-1887","description":"Integer signedness error in the sockargs function in sys/kern/uipc_syscalls.c in FreeBSD 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to cause a denial of service (memory overwrite and kernel panic) or gain privileges via a negative buflen argument, which triggers a heap-based buffer overflow.","status":"published","published":"2016-05-25T15:59:03.88Z","modified":"2026-06-17T00:42:48.253Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:03:25.366449Z"}]}}