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CVE-2017-1085

HighPublished

In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a...

Published: Sep 12, 2018
Updated: Sep 16, 2024
Assigning CNA: freebsd
Evidence observed: Jun 28, 2017

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

1.7%

Low · next 30 days

Percentile: 76.0%
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

In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a read-write region. A specially crafted executable could be exploited to execute arbitrary code in the user context.

Sources

FreeBSD - 'setrlimit' Stack Clash (PoC)Exploit
Qualys Corporation · freebsd_x86 · Jun 28, 2017

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