HOMEVULNERABILITIESCVE-2017-1000378
CRITICAL

CVE-2017-1000378

CWE-400Published: June 19, 2017· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2017-1000378 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netbsd1 product(s)
netbsd
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markup
ADVISORYhttp://www.securityfocus.com/bid/99255
ADVISORYhttps://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
ADVISORYhttp://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdlib/qsort.c?rev=1.23&content-type=text/x-cvsweb-markup
ADVISORYhttp://www.securityfocus.com/bid/99255
ADVISORYhttps://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

All References (6)

→
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

Quick Facts

CVE IDCVE-2017-1000378
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-400
CISA KEVNo
Affected1 vendor(s)
PublishedJun 19, 2017

Related CVEs (CWE-400)

CVE-2025-24269
9.8
CVE-2022-48716
9.8
CVE-2024-45166
9.8
CVE-2025-24190
9.8
CVE-2023-30769
9.8
CVE-2025-24211
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-1000378 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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