What’s Vulnerable › Vulnerabilities

CVE-2017-1084

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.3% 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, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.

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/42277/
• https://www.exploit-db.com/exploits/42278/
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
• https://www.exploit-db.com/exploits/42277/
• https://www.exploit-db.com/exploits/42278/
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

Get alerted when CVE-2017-1084 or the next vulnerability affects your stack