Page 20 of 255 results (0.008 seconds)

CVSS: 8.2EPSS: 3%CPEs: 7EXPL: 0

The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended MAC-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via (1) a crafted DHCP discovery message or (2) crafted non-IP traffic. El firewall IPTables en OpenStack Neutron en versiones anteriores a 7.0.4 y 8.0.0 hasta la versión 8.1.0 permite a atacantes remotos eludir un mecanismo de protección destinado a suplantar una MAC y consecuentemente provocar una denegación de servicio o interceptar tráfico de red a través de (1) la detección de un mensaje DHCP manipulado o (2) tráfico no IP manipulado. Neutron functionality includes internal firewall management between networks. Due to the relaxed nature of particular rules, it is possible for machines on the same layer 2 networks to forge non-IP traffic, such as ARP and DHCP requests. • http://www.openwall.com/lists/oss-security/2016/06/10/5 http://www.openwall.com/lists/oss-security/2016/06/10/6 https://access.redhat.com/errata/RHSA-2016:1473 https://access.redhat.com/errata/RHSA-2016:1474 https://bugs.launchpad.net/neutron/+bug/1558658 https://review.openstack.org/#/c/299021 https://review.openstack.org/#/c/299023 https://review.openstack.org/#/c/299025 https://security.openstack.org/ossa/OSSA-2016-009.html https://access. • CWE-254: 7PK - Security Features •

CVSS: 8.2EPSS: 3%CPEs: 2EXPL: 0

The IPTables firewall in OpenStack Neutron before 7.0.4 and 8.0.0 through 8.1.0 allows remote attackers to bypass an intended DHCP-spoofing protection mechanism and consequently cause a denial of service or intercept network traffic via a crafted DHCP discovery message. El firewall IPTables en OpenStack Neutron en versiones anteriores a 7.0.4 y 8.0.0 hasta la versión 8.1.0 permite a atacantes remotos eludir un mecanismo destinado a la protección DHCP-spoofing y consecuentemente causar una denegación de servicio o interceptar tráfico de la red a través de un mensaje DHCP de descubrimiento manipulado. Neutron functionality includes internal firewall management between networks. Due to the relaxed nature of particular rules, it is possible for machines on the same layer 2 networks to forge non-IP traffic, such as ARP and DHCP requests. • http://www.openwall.com/lists/oss-security/2016/06/10/5 http://www.openwall.com/lists/oss-security/2016/06/10/6 https://access.redhat.com/errata/RHSA-2016:1473 https://access.redhat.com/errata/RHSA-2016:1474 https://bugs.launchpad.net/neutron/+bug/1558658 https://review.openstack.org/#/c/300202 https://review.openstack.org/#/c/303563 https://review.openstack.org/#/c/303572 https://security.openstack.org/ossa/OSSA-2016-009.html https://access. • CWE-254: 7PK - Security Features •

CVSS: 7.5EPSS: 0%CPEs: 2EXPL: 0

The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk. El controlador libvirt en OpenStack Compute (Nova) en versiones anteriores a 2015.1.4 (kilo) y 12.0.x en versiones anteriores a 12.0.3 (liberty), cuando usa almacenamiento en bruto y use_cow_images está establecido a false, permite a usuarios remotos autenticados leer archivos arbitrarios a través de una cabecera qcow2 manipulada en un disco efímero o root. An information-exposure flaw was found in the OpenStack Compute (nova) resize and migrate functionality. An authenticated user could write a malicious qcow header to an ephemeral or root disk, referencing a block device as a backing file. With a subsequent resize or migration, file system content on the specified device would be leaked to the user. • http://www.openwall.com/lists/oss-security/2016/03/08/6 http://www.securityfocus.com/bid/84277 https://bugs.launchpad.net/nova/+bug/1548450 https://security.openstack.org/ossa/OSSA-2016-007.html https://access.redhat.com/security/cve/CVE-2016-2140 https://bugzilla.redhat.com/show_bug.cgi?id=1313454 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 4.3EPSS: 0%CPEs: 3EXPL: 0

OpenStack Image Service (Glance) before 2015.1.3 (kilo) and 11.0.x before 11.0.2 (liberty), when show_multiple_locations is enabled, allow remote authenticated users to change image status and upload new image data by removing the last location of an image. OpenStack Image Service (Glance) en versiones anteriores a 2015.1.3 (kilo) y 11.0.x en versiones anteriores a 11.0.2 (liberty), cuando show_multiple_locations está habilitado, permiten a usuarios remotos autenticados cambiar el estado de imagen y cargar nuevos datos de imagen eliminando la última localización de una imagen. An authorization vulnerability in OpenStack Image service was discovered, which allowed image-status manipulation using locations. By removing the last location of an image, an authenticated user could change the status from 'active' to 'queue'. A malicious tenant could exploit this flaw to silently replace owned image data, regardless of its original creator or visibility settings. • http://rhn.redhat.com/errata/RHSA-2016-0309.html http://www.securityfocus.com/bid/82696 https://security.openstack.org/ossa/OSSA-2016-006.html https://access.redhat.com/security/cve/CVE-2016-0757 https://bugzilla.redhat.com/show_bug.cgi?id=1302607 • CWE-284: Improper Access Control CWE-285: Improper Authorization •

CVSS: 7.5EPSS: 0%CPEs: 5EXPL: 0

The identity service in OpenStack Identity (Keystone) before 2015.1.3 (Kilo) and 8.0.x before 8.0.2 (Liberty) and keystonemiddleware (formerly python-keystoneclient) before 1.5.4 (Kilo) and Liberty before 2.3.3 does not properly invalidate authorization tokens when using the PKI or PKIZ token providers, which allows remote authenticated users to bypass intended access restrictions and gain access to cloud resources by manipulating byte fields within a revoked token. El servicio de identificación en OpenStack Identity (Keystone) en versiones anteriores a 2015.1.3 (Kilo) y 8.0.x en versiones anteriores a 8.0.2 (Liberty) y keystonemiddleware (anteriormente python-keystoneclient) en versiones anteriores a 1.5.4 (Kilo) y Liberty en versiones anteriores a 2.3.3 no invalida correctamente los tokens de autorización cuando utiliza los proveedores de token PKI o PKIZ, lo que permite a usuarios remotos autenticados eludir las restricciones de acceso previstas y obtener acceso a recursos de la nube manipulando los campos byte dentro de un token revocado. • http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/80498 https://bugs.launchpad.net/keystone/+bug/1490804 https://security.openstack.org/ossa/OSSA-2016-005.html https://wiki.openstack.org/wiki/OSSN/OSSN-0062 • CWE-522: Insufficiently Protected Credentials •