Suricata Vulnerability: CPU and Memory Overload Due to Misconfigured Parser
CVE-2024-23836

7.5HIGH

Key Information:

Vendor

Oisf

Status
Suricata
Vendor
CVE Published:
26 February 2024

What is CVE-2024-23836?

Suricata, a well-known network Intrusion Detection and Prevention System, is susceptible to a vulnerability that allows attackers to exploit crafted traffic. This flaw results in excessive CPU and memory usage, potentially leading to severe system slowdowns and denial of service. Users of Suricata versions older than 6.0.16 and 7.0.3 are at risk. To mitigate this issue, it is recommended to disable the affected protocol app-layer parser in the configuration file and to reduce the stream.reassembly.depth setting. The vulnerability is resolved in the specified patched versions.

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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...
x_refsource_CONFIRM
https://github.com/OISF/suricata/commit/18841a58da71e735d...
x_refsource_MISC
https://github.com/OISF/suricata/commit/2a2120ecf10c5b571...
x_refsource_MISC

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

  • Vulnerability Reserved

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