Stack-based Buffer Overflow Affecting suricata package, versions [,8.0.2)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UNMANAGED-SURICATA-14136100
- published27 Nov 2025
- disclosed27 Nov 2025
- creditUnknown
Introduced: 27 Nov 2025
CVE-2025-64344 (opens in a new tab)How to fix?
Upgrade suricata to version 8.0.2 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the LuaPushStringBuffer function. An attacker can cause a stack overflow by passing a large buffer to a Lua script, potentially leading to denial of service.
Note: This is only exploitable if Lua rules or output scripts are enabled and large buffers are processed.
Workaround
This vulnerability can be mitigated by disabling Lua rules and output scripts, or by setting limits such as stream.depth.reassembly and HTTP response body limits (response-body-limit) to less than half the stack size.