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MEDIUM · 5.6

CVE-2021-3499

A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to po...

Vulnerability Description

A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to potentially lose of confidentiality, integrity or availability of a service.

CVSS Score

5.6

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
OvnOvn-Kubernetes<= 0.3.0

Related Weaknesses (CWE)

CWE-863

References

FAQ

What is CVE-2021-3499?

CVE-2021-3499 is a vulnerability with a CVSS score of 5.6 (MEDIUM). A vulnerability was found in OVN Kubernetes in versions up to and including 0.3.0 where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. It could lead to po...

How severe is CVE-2021-3499?

CVE-2021-3499 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3499?

Check the references section above for vendor advisories and patch information. Affected products include: Ovn Ovn-Kubernetes.