CVE-2023-3637

An uncontrolled resource consumption flaw was found in openstack-neutron. This flaw allows a remote authenticated user to query a list of security groups for an invalid project. This issue creates resources that are unconstrained by the users quota. If a malicious user were to submit a significant number of requests, this could lead to a denial of service.

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Potential Mitigations

• Mitigation of resource exhaustion attacks requires that the target system either:

• The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.

• The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/147.html
• https://cwe.mitre.org/data/definitions/227.html
• https://cwe.mitre.org/data/definitions/492.html

References

• https://access.redhat.com/errata/RHSA-2023:4283
• https://access.redhat.com/security/cve/CVE-2023-3637
• https://bugzilla.redhat.com/show_bug.cgi?id=2222270
• https://access.redhat.com/errata/RHSA-2023:4283
• https://access.redhat.com/security/cve/CVE-2023-3637
• https://bugzilla.redhat.com/show_bug.cgi?id=2222270