Mitigating Packet Reassembly Failure with Defrag
CVE-2024-37151

7.5HIGH

Key Information:

Vendor

Oisf

Status
Suricata
Vendor
CVE Published:
11 July 2024

What is CVE-2024-37151?

Suricata, a prominent network intrusion detection, prevention, and security monitoring engine developed by OISF, is facing a vulnerability that arises from the mishandling of fragmented packets when they share the same IP ID value. This issue can lead to packet reassembly failures and could potentially allow for policy bypass within the system. It is advisable for users to upgrade to the latest versions, specifically 7.0.6 or 6.0.20, to mitigate this issue. For configurations utilizing af-packet, enabling the 'defrag' option can further reduce the vulnerability's impact.

Affected Version(s)

suricata >= 6.0.0, < 6.0.20 < 6.0.0, 6.0.20

suricata >= 7.0.0,< 7.0.6 < 7.0.0, 7.0.6

References

https://github.com/OISF/suricata/security/advisories/GHSA...
x_refsource_CONFIRM
https://github.com/OISF/suricata/commit/9d5c4273cb7e5ca65...
x_refsource_MISC
https://github.com/OISF/suricata/commit/aab7f35c76721df19...
x_refsource_MISC

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.