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CVE-2016-1887

Status Candidate

Overview

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.

Related Files

FreeBSD Security Advisory - FreeBSD-SA-16:19.sendmsg
Posted May 18, 2016
Authored by CTurt and the HardenedBSD team | Site security.freebsd.org

FreeBSD Security Advisory - Incorrect argument handling in the socket code allows malicious local user to overwrite large portion of the kernel memory. Malicious local user may crash kernel or execute arbitrary code in the kernel, potentially gaining superuser privileges.

tags | advisory, arbitrary, kernel, local
systems | freebsd
advisories | CVE-2016-1887
SHA-256 | 645db3fe4369fd21421c9b74273cd54e8fa721a229dc9fde4d52770ffac13ad6
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