Redhat: >> Openstack >> 10 Security Vulnerabilities
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.
CVSS Score
7.5
EPSS Score
0.008
Published
2018-09-19
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6. The decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding.
CVSS Score
4.9
EPSS Score
0.022
Published
2018-09-19
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
CVSS Score
4.3
EPSS Score
0.012
Published
2018-09-19
When using the Linux bridge ml2 driver, non-privileged tenants are able to create and attach ports without specifying an IP address, bypassing IP address validation. A potential denial of service could occur if an IP address, conflicting with existing guests or routers, is then assigned from outside of the allowed allocation pool. Versions of openstack-neutron before 13.0.0.0b2, 12.0.3 and 11.0.5 are vulnerable.
CVSS Score
6.5
EPSS Score
0.004
Published
2018-09-10
A vulnerability was found in openstack-cinder releases up to and including Queens, allowing newly created volumes in certain storage volume configurations to contain previous data. It specifically affects ScaleIO volumes using thin volumes and zero padding. This could lead to leakage of sensitive information between tenants.
CVSS Score
5.1
EPSS Score
0.002
Published
2018-08-27
A flaw was found in openstack-tripleo-common as shipped with Red Hat Openstack Enterprise 10 and 11. The sudoers file as installed with OSP's openstack-tripleo-common package is much too permissive. It contains several lines for the mistral user that have wildcards that allow directory traversal with '..' and it grants full passwordless root access to the validations user.
CVSS Score
8.2
EPSS Score
0.001
Published
2018-08-22
In the Federation component of OpenStack Keystone before 11.0.4, 12.0.0, and 13.0.0, an authenticated "GET /v3/OS-FEDERATION/projects" request may bypass intended access restrictions on listing projects. An authenticated user may discover projects they have no authority to access, leaking all projects in the deployment and their attributes. Only Keystone with the /v3/OS-FEDERATION endpoint enabled via policy.json is affected.
CVSS Score
5.3
EPSS Score
0.012
Published
2018-07-31
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
CVSS Score
5.5
EPSS Score
0.015
Published
2018-07-27
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
CVSS Score
5.5
EPSS Score
0.025
Published
2018-07-27
An access-control flaw was found in the OpenStack Orchestration (heat) service before 8.0.0, 6.1.0 and 7.0.2 where a service log directory was improperly made world readable. A malicious system user could exploit this flaw to access sensitive information.
CVSS Score
5.9
EPSS Score
0.001
Published
2018-07-27