What’s Vulnerable › Vulnerabilities

CVE-2017-1085

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-12 · updated 2026-06-17
• Weakness: CWE-119

Description

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.

Affected products

• FreeBSD: before 11.2 — fixed in 11.2

How to fix

Upgrade to a fixed version: FreeBSD 11.2. Check the vendor advisory for mitigations.

References

• https://www.exploit-db.com/exploits/42279/
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
• https://www.exploit-db.com/exploits/42279/
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

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