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defrag: IP ID reuse can lead to policy bypass

Moderate
victorjulien published GHSA-qrp7-g66m-px24 Jul 11, 2024

Package

suricata

Affected versions

>=6.0.0,<=6.0.19
>=7.0.0,<=7.0.5

Patched versions

6.0.20
7.0.6

Description

Impact

Mishandling of multiple fragmented packets using the same IP ID value can lead to packet reassembly failure, which can lead to policy bypass.

Patches

Upgrade to 7.0.6 or 6.0.20.

Workarounds

When using af-packet, enable defrag to reduce the scope of the problem.

References

https://redmine.openinfosecfoundation.org/issues/7042 (7.0.x)
https://redmine.openinfosecfoundation.org/issues/7041 (6.0.x)

Credits

Issue has been found and reported by Léopold Ouairy, Pascal Melin and Robinson Maigne.

Severity

Moderate
5.3
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVE ID

CVE-2024-37151

Weaknesses

No CWEs