SB2023042649 - Local denial of service in OpenStack Nova
Published: April 26, 2023
Security Bulletin ID
SB2023042649
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) State Issues (CVE-ID: CVE-2022-37394)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an error, related to port binding. By creating a neutron port with the direct vnic_type, creating an instance bound to that port, and then changing the vnic_type of the bound port to macvtap, an authenticated user may cause the compute service to fail to restart, resulting in a possible denial of service.
Remediation
Install update from vendor's website.