Upstream information
Description
Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy set variables is affected. v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win. Users are advised to upgrade. Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level as a mitigation. Any users that are implicitly trusting the proxy defined headers for security should immediately cease doing so until upgraded to the fixed versions.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
| CNA (GitHub) | National Vulnerability Database | SUSE | |
|---|---|---|---|
| Base Score | 5.4 | 5.4 | 5.4 |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N |
| Attack Vector | Network | Network | Network |
| Attack Complexity | High | High | High |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Changed | Changed | Changed |
| Confidentiality Impact | Low | Low | Low |
| Integrity Impact | Low | Low | Low |
| Availability Impact | None | None | None |
| CVSSv3 Version | 3.1 | 3.1 | 3.1 |
| SUSE | |
|---|---|
| Base Score | 6.3 |
| Vector | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| Attack Vector | Network |
| Attack Complexity | High |
| Attack Requirements | Present |
| Privileges Required | None |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | Low |
| Vulnerable System Integrity Impact | Low |
| Vulnerable System Availability Impact | None |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
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Please note that this evaluation state might be work in progress, incomplete or outdated.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 | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP6 | rubygem-puma | Affected |
| openSUSE Leap 15.5 | rubygem-puma | Affected |
| openSUSE Leap 15.6 | rubygem-puma | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Availability Extension 15 SP2 | rubygem-puma | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP3 | rubygem-puma | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP4 | rubygem-puma | Affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise High Availability Extension 15 | rubygem-puma | Affected |
| SUSE Linux Enterprise High Availability Extension 15 SP1 | rubygem-puma | Affected |
| openSUSE Leap 15.3 | rubygem-puma | Affected |
| openSUSE Leap 15.4 | rubygem-puma | Affected |
SUSE Timeline for this CVE
CVE page created: Fri Sep 20 02:00:06 2024CVE page last modified: Thu Sep 26 17:49:57 2024