CVE-2021-20267
https://notcve.org/view.php?id=CVE-2021-20267
A flaw was found in openstack-neutron's default Open vSwitch firewall rules. By sending carefully crafted packets, anyone in control of a server instance connected to the virtual switch can impersonate the IPv6 addresses of other systems on the network, resulting in denial of service or in some cases possibly interception of traffic intended for other destinations. Only deployments using the Open vSwitch driver are affected. Source: OpenStack project. Versions before openstack-neutron 15.3.3, openstack-neutron 16.3.1 and openstack-neutron 17.1.1 are affected. • https://bugzilla.redhat.com/show_bug.cgi?id=1934330 https://security.openstack.org/ossa/OSSA-2021-001.html • CWE-345: Insufficient Verification of Data Authenticity •
CVE-2020-14365 – ansible: dnf module install packages with no GPG signature
https://notcve.org/view.php?id=CVE-2020-14365
A flaw was found in the Ansible Engine, in ansible-engine 2.8.x before 2.8.15 and ansible-engine 2.9.x before 2.9.13, when installing packages using the dnf module. GPG signatures are ignored during installation even when disable_gpg_check is set to False, which is the default behavior. This flaw leads to malicious packages being installed on the system and arbitrary code executed via package installation scripts. The highest threat from this vulnerability is to integrity and system availability. Se encontró un fallo en Ansible Engine, en ansible-engine versiones 2.8.x anteriores a 2.8.15 y ansible-engine versiones 2.9.x anteriores a 2.9.13, Cuando se instalan paquetes usando el módulo dnf. • https://bugzilla.redhat.com/show_bug.cgi?id=1869154 https://www.debian.org/security/2021/dsa-4950 https://access.redhat.com/security/cve/CVE-2020-14365 • CWE-347: Improper Verification of Cryptographic Signature •
CVE-2017-15114
https://notcve.org/view.php?id=CVE-2017-15114
When libvirtd is configured by OSP director (tripleo-heat-templates) to use the TLS transport it defaults to the same certificate authority as all non-libvirtd services. As no additional authentication is configured this allows these services to connect to libvirtd (which is equivalent to root access). If a vulnerability exists in another service it could, combined with this flaw, be exploited to escalate privileges to gain control over compute nodes. Cuando libvirtd es configurado por OSP director (tripleo-heat-templates) para usar el transporte TLS, vuelve por defecto a la misma autoridad de certificado que todos los servicios que no pertenecen a libvirtd. Como no se configura autenticación adicional, esto permite que esos servicios se conecten a libvirtd (lo que equivale al acceso root). • http://www.securityfocus.com/bid/101971 https://git.openstack.org/cgit/openstack/tripleo-heat-templates/commit/?id=994922a8ba996fe68d047df0e1486fa805dbea31 • CWE-295: Improper Certificate Validation •