Upstream information

CVE-2019-16770 at MITRE


In Puma before versions 3.12.2 and 4.3.1, a poorly-behaved client could use keepalive requests to monopolize Puma's reactor and create a denial of service attack. If more keepalive connections to Puma are opened than there are threads available, additional connections will wait permanently if the attacker sends requests frequently enough. This vulnerability is patched in Puma 4.3.1 and 3.12.2.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 5.3 7.5
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Low High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1158675 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE OpenStack Cloud 7
  • crowbar-core >= 4.0+git.1578392992.fabfd186c-9.63.1
  • crowbar-core-branding-upstream >= 4.0+git.1578392992.fabfd186c-9.63.1
  • crowbar-openstack >= 4.0+git.1579171175.d53ab6363-9.68.1
  • grafana-monasca-ui-drilldown >= 1.5.5~dev3-8.1
  • openstack-horizon-plugin-monasca-ui >= 1.5.5~dev3-8.1
  • openstack-monasca-api >= 1.7.1~dev18-12.1
  • openstack-monasca-log-api >= 1.4.3~dev3-5.1
  • openstack-neutron >= 9.4.2~dev21-7.38.1
  • openstack-neutron-dhcp-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-doc >= 9.4.2~dev21-7.38.1
  • openstack-neutron-fwaas >= 9.0.2~dev5-4.6.1
  • openstack-neutron-fwaas-doc >= 9.0.2~dev5-4.6.1
  • openstack-neutron-ha-tool >= 9.4.2~dev21-7.38.1
  • openstack-neutron-l3-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-linuxbridge-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-macvtap-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-metadata-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-metering-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-openvswitch-agent >= 9.4.2~dev21-7.38.1
  • openstack-neutron-server >= 9.4.2~dev21-7.38.1
  • python-horizon-plugin-monasca-ui >= 1.5.5~dev3-8.1
  • python-monasca-api >= 1.7.1~dev18-12.1
  • python-monasca-log-api >= 1.4.3~dev3-5.1
  • python-neutron >= 9.4.2~dev21-7.38.1
  • python-neutron-fwaas >= 9.0.2~dev5-4.6.1
  • ruby2.1-rubygem-crowbar-client >= 3.9.1-7.17.1
  • ruby2.1-rubygem-puma >= 2.16.0-4.3.1
  • rubygem-crowbar-client >= 3.9.1-7.17.1
  • rubygem-puma >= 2.16.0-4.3.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise High Availability 15 GA rubygem-puma Affected
SUSE Linux Enterprise High Availability 15 SP1 rubygem-puma Affected
SUSE Openstack Cloud 6 rubygem-puma Analysis
SUSE Openstack Cloud 7 rubygem-puma Released
SUSE Openstack Cloud 8 rubygem-puma Analysis
SUSE Openstack Cloud 9 rubygem-puma In progress
SUSE Storage 4 rubygem-puma Analysis