Excessive CPU Usage and Logging in Suricata Due to SSH Banner Parsing
CVE-2024-28870

7.5HIGH

Key Information:

Vendor

Oisf

Status
Suricata
Vendor
CVE Published:
3 April 2024

What is CVE-2024-28870?

Suricata, a network Intrusion Detection and Prevention System, experiences a vulnerability due to the way it handles excessively lengthy SSH banners. This can lead to substantial CPU resource usage, resulting in degraded performance and an increase in logging activity. Such conditions can overwhelm system resources, complicating the management of system alerts. The issue has been addressed in updated releases, specifically versions 6.0.17 and 7.0.4.

Affected Version(s)

suricata <= 6.0.16 <= 6.0.16

suricata >= 7.0.0, <= 7.0.3 <= 7.0.0, 7.0.3

References

https://github.com/OISF/suricata/security/advisories/GHSA...
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CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

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