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crafted traffic can cause denial of service

High
victorjulien published GHSA-q33q-45cr-3cpc Feb 26, 2024

Package

suricata

Affected versions

<= 6.0.15
>= 7.0.0, <= 7.0.2

Patched versions

6.0.16
7.0.3

Description

Impact

An attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service.

Patches

Upgrade to 6.0.16 or 7.0.3.

Workarounds

Disable affected protocol app-layer parser in the yaml.
A reduced stream.reassembly.depth value helps reduce the severity of the issue.

References

https://redmine.openinfosecfoundation.org/issues/6658 (6.0.x)
https://redmine.openinfosecfoundation.org/issues/6659 (6.0.x)
https://redmine.openinfosecfoundation.org/issues/6660 (6.0.x)
https://redmine.openinfosecfoundation.org/issues/6532 (7.0.x)
https://redmine.openinfosecfoundation.org/issues/6540 (7.0.x)
https://redmine.openinfosecfoundation.org/issues/6531 (7.0.x)
These tickets are private until about 2 weeks after release.

Credits

Found by OSS-Fuzz using quadfuzz.

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2024-23836

Weaknesses