CVE-2017-1000378

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The NetBSD qsort() function is recursive, and not randomized, an attacker can construct a pathological input array of N elements that causes qsort() to deterministically recurse N/4 times. This allows attackers to consume arbitrary amounts of stack memory and manipulate stack memory to assist in arbitrary code execution attacks. This affects NetBSD 7.1 and possibly earlier versions.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-400

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markupThird Party Advisory
http://www.securityfocus.com/bid/99255Third Party Advisory, VDB Entry
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory
http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markupThird Party Advisory
http://www.securityfocus.com/bid/99255Third Party Advisory, VDB Entry
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txtThird Party Advisory

Timeline

Published: Jun 19, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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