Red Hat OpenStack Platform update for openstack-nova

1) State Issues

EUVDB-ID: #VU75530

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-37394

CWE-ID: CWE-371 - State Issues

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat OpenStack: 16.2

openstack-nova (Red Hat package): before 20.6.2-2.20230308185148.fc01371.el8ost

CPE2.3

• cpe:2.3:a:red_hat:red_hat_openstack:16.2:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:openstack-nova_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*

External links

https://access.redhat.com/errata/RHSA-2023:1948

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.