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The NetBSD qsort() function is recursive, and not randomized, an attacker can construct a…

Priority MEDIUM 49CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.

Summary

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.

Why it matters now

EPSS 0.04123 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:*up to 7.1VulnerableNetBSD
  • cpe:2.3:o:netbsd:netbsd:*:*:*:*:*:*:*:* Versions up to 7.1 Vulnerable ·NetBSD

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-1000378
  2. 2026-10-03 Alias added: GHSA-qc88-87cw-xw5j

References

  • TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
  • TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
  • TI-2002-01263 Buffer overflow in Sendmail 5.79 to 8.12.7 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 10.0
  • TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
  • TI-1999-00045 Buffer overflow of rlogin program using TERM environmental variable. CVSS 2.0HIGH 10.0
  • TI-2014-06993 The fetch_url function in usr.bin/ftp/fetch.c in tnftp, as used in NetBSD 5.1 through… CVSS 2.0HIGH 7.5
See all 167 →

Sources