#VU54393 Improper Authorization in OVN Kubernetes - CVE-2021-3499

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Main Vulnerability Database Vulnerabilities #VU54393

#VU54393 Improper Authorization in OVN Kubernetes - CVE-2021-3499

Published: June 25, 2021


Vulnerability identifier: #VU54393
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3499
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
OVN Kubernetes
Software vendor:
Open Virtual Network

Description

The vulnerability allows a remote attacker to gain access to restricted resources.

The vulnerability exists in OVN Kubernetes where the Egress Firewall does not reliably apply firewall rules when there is multiple DNS rules. A remote attacker can gain unauthorized access to the protected system.


Remediation

Install updates from vendor's website.

External links