CVE-2024-38534

Suricata modbus: txs without responses are never freed

Description

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Crafted modbus traffic can lead to unlimited resource accumulation within a flow. Upgrade to 7.0.6. Set a limited stream.reassembly.depth to reduce the issue.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.19%
Vendor Advisory github.com
Affected: OISF suricata
Published at:
Updated at:

References

Link Tags
https://github.com/OISF/suricata/security/advisories/GHSA-59qg-h357-69fq vendor advisory
https://github.com/OISF/suricata/commit/a753cdbe84caee3b66d0bf49b2712d29a50d67ae patch
https://redmine.openinfosecfoundation.org/issues/6987 issue tracking
https://redmine.openinfosecfoundation.org/issues/6988 issue tracking

Frequently Asked Questions

What is the severity of CVE-2024-38534?
CVE-2024-38534 has been scored as a high severity vulnerability.
How to fix CVE-2024-38534?
To fix CVE-2024-38534, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38534 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-38534 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38534?
CVE-2024-38534 affects OISF suricata.
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