5.9

CVE-2026-45752

Suricata detect/transform: use-after-free in decompress transforms

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Starting in version 8.0.0 and prior to version 8.0.5, when certain detection transforms are chained, the decompress transform pipeline could read from an inspection buffer after it had been reallocated and freed. The issue is reached during network traffic processing, but requires a malicious rule as Suricata will crash whatever the traffic. Version 8.0.5 contains a fix. As a workaround, avoid rules that chain `gunzip` or `zlib_deflate` with `max-size` bigger than 4096 after another transform.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Oisf ≫ Suricata Version >= 8.0.0 < 8.0.5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
Vendor Advisory
Release Notes
https://github.com/OISF/suricata/security/advisories/GHSA-qmc9-vqq2-8mv3
Vendor Advisory
Mitigation
https://redmine.openinfosecfoundation.org/issues/8536
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