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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
7.5
/ 10

CVSS base metrics

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