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CVE-2016-1887

HighPublished

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...

Published: May 25, 2016
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: May 29, 2016

Primary CVSS

7.8/ 10High

nvd · CVSS 3.0

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

1.1%

Low · next 30 days

Percentile: 62.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

FreeBSD Kernel (FreeBSD 10.2 x64) - 'sendmsg' Kernel Heap Overflow (PoC)Exploit
CTurt · freebsd_x86-64 · May 29, 2016

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