SB2021062508 - Security restrictions bypass in OVN Kubernetes
Published: June 25, 2021
Security Bulletin ID
SB2021062508
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authorization (CVE-ID: CVE-2021-3499)
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 update from vendor's website.