What’s Vulnerable › Vulnerabilities

CVE-2017-1000365

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-06-19 · updated 2026-06-17

Description

The Linux Kernel imposes a size restriction on the arguments and environmental strings passed through RLIMIT_STACK/RLIM_INFINITY (1/4 of the size), but does not take the argument and environment pointers into account, which allows attackers to bypass this limitation. This affects Linux Kernel versions 4.11.5 and earlier. It appears that this feature was introduced in the Linux Kernel version 2.6.23.

Affected products

• Linux kernel: from 2.6.23 before 3.2.91; from 3.3 before 3.10.108; from 3.11 before 3.16.46; from 3.17 before 3.18.59; from 3.19 before 4.1.43; from 4.2 before 4.4.75 — fixed in 3.10.108, 3.16.46, 3.18.59, 3.2.91, 4.1.43, 4.11.8

How to fix

Upgrade to a fixed version: Linux kernel 3.10.108, 3.16.46, 3.18.59, 3.2.91. Check the vendor advisory for mitigations.

References

• http://www.debian.org/security/2017/dsa-3927
• http://www.debian.org/security/2017/dsa-3945
• http://www.securityfocus.com/bid/99156
• https://access.redhat.com/security/cve/CVE-2017-1000365
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
• http://www.debian.org/security/2017/dsa-3927
• http://www.debian.org/security/2017/dsa-3945
• http://www.securityfocus.com/bid/99156
• https://access.redhat.com/security/cve/CVE-2017-1000365
• https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

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