Upstream information
Description
mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. When mod_auth_openidc versions prior to 2.4.9 are configured to use an unencrypted Redis cache (`OIDCCacheEncrypt off`, `OIDCSessionType server-cache`, `OIDCCacheType redis`), `mod_auth_openidc` wrongly performed argument interpolation before passing Redis requests to `hiredis`, which would perform it again and lead to an uncontrolled format string bug. Initial assessment shows that this bug does not appear to allow gaining arbitrary code execution, but can reliably provoke a denial of service by repeatedly crashing the Apache workers. This bug has been corrected in version 2.4.9 by performing argument interpolation only once, using the `hiredis` API. As a workaround, this vulnerability can be mitigated by setting `OIDCCacheEncrypt` to `on`, as cache keys are cryptographically hashed before use when this option is enabled.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 4.3 |
| Vector | AV:N/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 7.5 | 5.3 |
| 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:L |
| 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 | Low |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2021:3020-1, published Mon Sep 13 10:18:11 UTC 2021
- SUSE-SU-2021:3352-1, published Tue Oct 12 16:46:46 UTC 2021
- openSUSE-SU-2021:1277-1, published Thu Sep 16 15:41:22 2021
- openSUSE-SU-2021:3020-1, published Mon Sep 13 12:40:41 2021
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise Module for Server Applications 15 SP3 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Manager Proxy 4.2 SUSE Manager Retail Branch Server 4.2 SUSE Manager Server 4.2 |
| Patchnames: SUSE-SLE-Module-Server-Applications-15-SP3-2021-3020 |
| SUSE Enterprise Storage 7 SUSE Linux Enterprise High Performance Computing 15 SP2 SUSE Linux Enterprise Module for Server Applications 15 SP2 SUSE Linux Enterprise Server 15 SP2 SUSE Linux Enterprise Server for SAP Applications 15 SP2 SUSE Manager Proxy 4.1 SUSE Manager Retail Branch Server 4.1 SUSE Manager Server 4.1 |
| Patchnames: SUSE-SLE-Module-Server-Applications-15-SP2-2021-3020 |
| SUSE Linux Enterprise High Performance Computing 15 SP4 SUSE Linux Enterprise Module for Server Applications 15 SP4 SUSE Linux Enterprise Server 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP4 GA apache2-mod_auth_openidc-2.3.8-3.15.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP5 SUSE Linux Enterprise Module for Server Applications 15 SP5 SUSE Linux Enterprise Server 15 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP5 |
| Patchnames: SUSE Linux Enterprise Module for Server Applications 15 SP5 GA apache2-mod_auth_openidc-2.3.8-150100.3.25.1 |
| SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 |
| Patchnames: SUSE-SLE-SERVER-12-SP5-2021-3352 |
| openSUSE Leap 15.2 |
| Patchnames: openSUSE-2021-1277 |
| openSUSE Leap 15.3 |
| Patchnames: openSUSE-SLE-15.3-2021-3020 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-10624 |
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 Performance Computing 12 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 12 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 15 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | apache2-mod_auth_openidc | Released |
| SUSE Manager Proxy 4.3 | apache2-mod_auth_openidc | Released |
| SUSE Manager Retail Branch Server 4.3 | apache2-mod_auth_openidc | Released |
| SUSE Manager Server 4.3 | apache2-mod_auth_openidc | Released |
| openSUSE Leap 15.5 | apache2-mod_auth_openidc | Affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP2 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 15 SP2 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 15 SP2-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP3 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 15 SP3-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP4 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server 15 SP4-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | apache2-mod_auth_openidc | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | apache2-mod_auth_openidc | Released |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | apache2-mod_auth_openidc | Affected |
| SUSE Enterprise Storage 6 | apache2-mod_auth_openidc | Affected |
| SUSE Enterprise Storage 7 | apache2-mod_auth_openidc | Released |
| SUSE Enterprise Storage 7.1 | apache2-mod_auth_openidc | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Real Time 15 SP2 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Real Time 15 SP3 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Real Time 15 SP4 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 12 SP4 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP1 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | apache2-mod_auth_openidc | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | apache2-mod_auth_openidc | Affected |
| SUSE Manager Proxy 4.0 | apache2-mod_auth_openidc | Unsupported |
| SUSE Manager Proxy 4.1 | apache2-mod_auth_openidc | Released |
| SUSE Manager Proxy 4.2 | apache2-mod_auth_openidc | Released |
| SUSE Manager Retail Branch Server 4.0 | apache2-mod_auth_openidc | Unsupported |
| SUSE Manager Retail Branch Server 4.1 | apache2-mod_auth_openidc | Released |
| SUSE Manager Retail Branch Server 4.2 | apache2-mod_auth_openidc | Released |
| SUSE Manager Server 4.0 | apache2-mod_auth_openidc | Unsupported |
| SUSE Manager Server 4.1 | apache2-mod_auth_openidc | Released |
| SUSE Manager Server 4.2 | apache2-mod_auth_openidc | Released |
| SUSE OpenStack Cloud 9 | apache2-mod_auth_openidc | Affected |
| SUSE OpenStack Cloud Crowbar 9 | apache2-mod_auth_openidc | Affected |
| openSUSE Leap 15.3 | apache2-mod_auth_openidc | Affected |
| openSUSE Leap 15.4 | apache2-mod_auth_openidc | Affected |
SUSE Timeline for this CVE
CVE page created: Fri Jul 23 05:07:24 2021CVE page last modified: Fri Sep 13 13:14:15 2024