TI-2018-12136 Aliases CVE-2018-16985 GHSA-5q4p-94m5-jf36

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in…

LOW 36CWE-125Published 2018-09-13 · Updated 2024-08-05

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

Summary

In Lizard (formerly LZ5) 2.0, use of an invalid memory address was discovered in LZ5_compress_continue in lz5_compress.c, related to LZ5_compress_fastSmall and MEM_read32. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.

Why it matters now

EPSS 0.0148 74th 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:lizard_project:lizard:2.0:::::::*	2.0	Vulnerable	Lizard Project

cpe:2.3:a:lizard_project:lizard:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Lizard Project

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-16985
2026-10-03 Alias added: GHSA-5q4p-94m5-jf36

References

Exploit 1

https://github.com/inikep/lizard/issues/18

TI-2018-08218 In Lizard v1.0 and LZ5 v2.0 (the prior release, before the product was renamed), there is… CVSS 3.0HIGH 7.8

Sources

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