TI-2020-09604 Aliases CVE-2020-11940 GHSA-h3c2-96hp-53g3

In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be…

LOW 36CWE-125Published 2020-04-23 · Updated 2024-08-04

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment monitored by nDPI's library.

Why it matters now

EPSS 0.01324 71st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

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

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ntop:ndpi::::::::	up to 3.2	Vulnerable	ntop

cpe:2.3:a:ntop:ndpi:*:*:*:*:*:*:*:* Versions up to 3.2 Vulnerable ·ntop

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2020-11940
2026-10-03 Alias added: GHSA-h3c2-96hp-53g3

References

Exploit 1

https://securitylab.github.com/advisories/GHSL-2020-051_052-ntop-ndpi

Patch 1

https://github.com/ntop/nDPI/commit/3bbb0cd3296023f6f922c71d21a1c374d2b0a435

TI-2020-09603 In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer… CVSS 3.1CRITICAL 9.8
TI-2020-12182 In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain… CVSS 3.1CRITICAL 9.8
TI-2020-12181 In nDPI through 3.2, there is a stack overflow in extractRDNSequence in lib/protocols/tls.c. CVSS 3.1CRITICAL 9.8
TI-2021-14532 ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello. CVSS 3.1HIGH 8.8
TI-2020-12180 In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read… CVSS 3.1CRITICAL 9.1
TI-2020-12179 In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read… CVSS 3.1CRITICAL 9.1

See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences