Upstream information
Description
Puma is a concurrent HTTP 1.1 server for Ruby/Rack applications. The fix for CVE-2019-16770 was incomplete. The original fix only protected existing connections that had already been accepted from having their requests starved by greedy persistent-connections saturating all threads in the same process. However, new connections may still be starved by greedy persistent-connections saturating all threads in all processes in the cluster. A `puma` server which received more concurrent `keep-alive` connections than the server had threads in its threadpool would service only a subset of connections, denying service to the unserved connections. This problem has been fixed in `puma` 4.3.8 and 5.3.1. Setting `queue_requests false` also fixes the issue. This is not advised when using `puma` without a reverse proxy, such as `nginx` or `apache`, because you will open yourself to slow client attacks (e.g. slowloris). The fix is very small and a git patch is available for those using unsupported versions of Puma.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
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 |
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 7.5 | 7.5 |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Network | Network |
Attack Complexity | Low | Low |
Privileges Required | None | None |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | None | None |
Integrity Impact | None | None |
Availability Impact | High | High |
CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2021:2761-1, published Tue Aug 17 19:23:41 UTC 2021
- SUSE-SU-2021:2914-1, published Thu Sep 2 13:29:52 UTC 2021
- SUSE-SU-2022:1515-1, published Wed May 4 13:17:03 UTC 2022
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
Image SLES15-SAP-Azure-BYOS Image SLES15-SAP-Azure-LI-BYOS-Production Image SLES15-SAP-Azure-VLI-BYOS-Production Image SLES15-SP1-SAP-Azure-BYOS Image SLES15-SP1-SAP-Azure-LI-BYOS-Production Image SLES15-SP1-SAP-Azure-VLI-BYOS-Production Image SLES15-SP2-SAP-Azure Image SLES15-SP2-SAP-Azure-LI-BYOS-Production Image SLES15-SP2-SAP-Azure-VLI-BYOS-Production Image SLES15-SP2-SAP-BYOS-Azure Image SLES15-SP2-SAP-BYOS-EC2-HVM Image SLES15-SP2-SAP-BYOS-GCE Image SLES15-SP2-SAP-EC2-HVM Image SLES15-SP2-SAP-GCE Image SLES15-SP3-SAP-Azure-LI-BYOS-Production Image SLES15-SP3-SAP-Azure-VLI-BYOS-Production Image SLES15-SP3-SAP-BYOS-Azure Image SLES15-SP3-SAP-BYOS-EC2-HVM Image SLES15-SP3-SAP-BYOS-GCE Image SLES15-SP4-SAP-Azure-LI-BYOS Image SLES15-SP4-SAP-Azure-LI-BYOS-Production Image SLES15-SP4-SAP-Azure-VLI-BYOS Image SLES15-SP4-SAP-Azure-VLI-BYOS-Production Image SLES15-SP4-SAP-BYOS Image SLES15-SP4-SAP-BYOS-Azure Image SLES15-SP4-SAP-BYOS-EC2 Image SLES15-SP4-SAP-BYOS-GCE Image SLES15-SP4-SAP-Hardened Image SLES15-SP4-SAP-Hardened-Azure Image SLES15-SP4-SAP-Hardened-BYOS Image SLES15-SP4-SAP-Hardened-BYOS-Azure Image SLES15-SP4-SAP-Hardened-BYOS-EC2 Image SLES15-SP4-SAP-Hardened-BYOS-GCE Image SLES15-SP4-SAP-Hardened-EC2 Image SLES15-SP4-SAP-Hardened-GCE Image SLES15-SP5-SAP-Azure-LI-BYOS Image SLES15-SP5-SAP-Azure-LI-BYOS-Production Image SLES15-SP5-SAP-Azure-VLI-BYOS Image SLES15-SP5-SAP-Azure-VLI-BYOS-Production Image SLES15-SP5-SAP-BYOS-Azure Image SLES15-SP5-SAP-BYOS-EC2 Image SLES15-SP5-SAP-BYOS-GCE Image SLES15-SP5-SAP-Hardened-Azure Image SLES15-SP5-SAP-Hardened-BYOS-Azure Image SLES15-SP5-SAP-Hardened-BYOS-EC2 Image SLES15-SP5-SAP-Hardened-BYOS-GCE Image SLES15-SP5-SAP-Hardened-EC2 Image SLES15-SP5-SAP-Hardened-GCE |
| |
SUSE Linux Enterprise High Availability Extension 15 SP1 |
| Patchnames: SUSE-SLE-Product-HA-15-SP1-2022-1515 |
SUSE Linux Enterprise High Availability Extension 15 SP2 |
| Patchnames: SUSE-SLE-Product-HA-15-SP2-2022-1515 |
SUSE Linux Enterprise High Availability Extension 15 SP3 |
| Patchnames: SUSE-SLE-Product-HA-15-SP3-2022-1515 |
SUSE Linux Enterprise High Availability Extension 15 SP4 |
| Patchnames: SUSE Linux Enterprise High Availability Extension 15 SP4 GA rubygem-puma-4.3.11-150000.3.6.2 |
SUSE Linux Enterprise High Availability Extension 15 SP5 |
| Patchnames: SUSE Linux Enterprise High Availability Extension 15 SP5 GA rubygem-puma-4.3.12-150000.3.9.1 |
SUSE Linux Enterprise High Availability Extension 15 |
| Patchnames: SUSE-SLE-Product-HA-15-2022-1515 |
SUSE OpenStack Cloud Crowbar 8 |
| Patchnames: SUSE-OpenStack-Cloud-Crowbar-8-2021-2761 |
SUSE OpenStack Cloud Crowbar 9 |
| Patchnames: SUSE-OpenStack-Cloud-Crowbar-9-2021-2914 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE-SLE-15.3-2022-1515 |
openSUSE Leap 15.4 |
| Patchnames: openSUSE-SLE-15.4-2022-1515 |
openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-12592 openSUSE-Tumbleweed-2024-13166 openSUSE-Tumbleweed-2024-13721 |
First public cloud image revisions this CVE is fixed in:
- amazon/suse-sles-sap-15-sp1-byos-v20220716-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp1-v20220726-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp2-byos-v20220718-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp2-v20220718-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp3-byos-v20220719-hvm-ssd-x86_64
- amazon/suse-sles-sap-15-sp3-v20220719-hvm-ssd-x86_64
- google/sles-15-sp1-sap-byos-v20220716-x86-64
- google/sles-15-sp1-sap-v20220716-x86-64
- google/sles-15-sp2-sap-byos-v20220602-x86-64
- google/sles-15-sp2-sap-v20220602-x86-64
- google/sles-15-sp3-sap-byos-v20220524-x86-64
- google/sles-15-sp3-sap-byos-v20221108-x86-64
- google/sles-15-sp3-sap-v20220524-x86-64
- google/sles-15-sp3-sap-v20221108-x86-64
- microsoft/suse-sles-sap-15-byos-v20220506-x86_64
- microsoft/suse-sles-sap-15-sp1-byos-v20220506-x86_64
- microsoft/suse-sles-sap-15-sp1-v20220716-x86_64
- microsoft/suse-sles-sap-15-sp2-byos-v20220505-x86_64
- microsoft/suse-sles-sap-15-sp2-v20220718-x86_64
- microsoft/suse-sles-sap-15-sp3-byos-v20220505-x86_64
- microsoft/suse-sles-sap-15-sp3-v20220719-x86_64
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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
Product(s) | Source package | State |
---|---|---|
Products under general support and receiving all security fixes. | ||
SUSE Linux Enterprise High Availability Extension 15 SP5 | rubygem-puma | Released |
SUSE Linux Enterprise High Availability Extension 15 SP6 | rubygem-puma | Already fixed |
openSUSE Leap 15.5 | rubygem-puma | Analysis |
openSUSE Leap 15.6 | rubygem-puma | Already fixed |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise High Availability Extension 15 SP2 | rubygem-puma | Released |
SUSE Linux Enterprise High Availability Extension 15 SP3 | rubygem-puma | Released |
SUSE Linux Enterprise High Availability Extension 15 SP4 | rubygem-puma | Released |
Products past their end of life and not receiving proactive updates anymore. | ||
SUSE Enterprise Storage 4 | rubygem-puma | Unsupported |
SUSE Linux Enterprise High Availability Extension 15 | rubygem-puma | Released |
SUSE Linux Enterprise High Availability Extension 15 SP1 | rubygem-puma | Released |
SUSE OpenStack Cloud 7 | rubygem-puma | Unsupported |
SUSE OpenStack Cloud Crowbar 8 | rubygem-puma | Released |
SUSE OpenStack Cloud Crowbar 9 | rubygem-puma | Released |
openSUSE Leap 15.3 | rubygem-puma | Affected |
openSUSE Leap 15.4 | rubygem-puma | Affected |
SUSE Timeline for this CVE
CVE page created: Wed May 12 02:01:16 2021CVE page last modified: Tue Sep 3 19:20:17 2024