Upstream information
Description
Redis is an open-source, in-memory database that persists on disk. In affected versions of Redis an integer overflow bug in 32-bit Redis version 4.0 or newer could be exploited to corrupt the heap and potentially result with remote code execution. Redis 4.0 or newer uses a configurable limit for the maximum supported bulk input size. By default, it is 512MB which is a safe value for all platforms. If the limit is significantly increased, receiving a large request from a client may trigger several integer overflow scenarios, which would result with buffer overflow and heap corruption. We believe this could in certain conditions be exploited for remote code execution. By default, authenticated Redis users have access to all configuration parameters and can therefore use the “CONFIG SET proto-max-bulk-len†to change the safe default, making the system vulnerable. **This problem only affects 32-bit Redis (on a 32-bit system, or as a 32-bit executable running on a 64-bit system).** The problem is fixed in version 6.2, and the fix is back ported to 6.0.11 and 5.0.11. Make sure you use one of these versions if you are running 32-bit Redis. An additional workaround to mitigate the problem without patching the redis-server executable is to prevent clients from directly executing `CONFIG SET`: Using Redis 6.0 or newer, ACL configuration can be used to block the command. Using older versions, the `rename-command` configuration directive can be used to rename the command to a random string unknown to users, rendering it inaccessible. Please note that this workaround may have an additional impact on users or operational systems that expect `CONFIG SET` to behave in certain ways.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having important severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 6.5 |
| Vector | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | Single |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 8.8 | 7.4 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H |
| Attack Vector | Network | Network |
| Attack Complexity | Low | High |
| Privileges Required | Low | None |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | None |
| Integrity Impact | High | High |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
SUSE Security Advisories:
- SUSE-SU-2021:1652-1, published Wed May 19 16:28:15 UTC 2021
- openSUSE-SU-2021:0682-1, published Sat May 8 00:38:59 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-SP3-2021-1652 |
| 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-SP2-2021-1652 |
| 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 redis-6.2.6-150400.1.5 |
| openSUSE Leap 15.2 |
| Patchnames: openSUSE-2021-682 |
| openSUSE Tumbleweed |
| Patchnames: openSUSE Tumbleweed GA redis-6.2.5-1.2 |
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 Enterprise Storage 7.1 | redis | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | redis7 | Already fixed |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | redis | Already fixed |
| SUSE Linux Enterprise Module for Server Applications 15 SP5 | redis7 | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP3 | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP5 | redis7 | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | redis | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | redis | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | redis7 | Already fixed |
| SUSE Manager Proxy 4.3 | redis | Already fixed |
| SUSE Manager Retail Branch Server 4.3 | redis | Already fixed |
| SUSE Manager Server 4.3 | redis | Already fixed |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP2 | redis | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | redis | Released |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4 | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | redis | Already fixed |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | redis | Already fixed |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | redis | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | redis | Released |
| SUSE Linux Enterprise Module for Server Applications 15 SP4 | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP2 | redis | Released |
| SUSE Linux Enterprise Server 15 SP2-LTSS | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP3 | redis | Released |
| SUSE Linux Enterprise Server 15 SP3-LTSS | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP4 | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP4-LTSS | redis | Already fixed |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | redis | Released |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | redis | Released |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Enterprise Storage 7 | redis | Released |
| SUSE Linux Enterprise Real Time 15 SP2 | redis | Already fixed |
| SUSE Linux Enterprise Real Time 15 SP4 | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP2-BCL | redis | Already fixed |
| SUSE Linux Enterprise Server 15 SP3-BCL | redis | Already fixed |
| SUSE Manager Proxy 4.1 | redis | Released |
| SUSE Manager Proxy 4.2 | redis | Released |
| SUSE Manager Retail Branch Server 4.1 | redis | Released |
| SUSE Manager Retail Branch Server 4.2 | redis | Released |
| SUSE Manager Server 4.1 | redis | Released |
| SUSE Manager Server 4.2 | redis | Released |
SUSE Timeline for this CVE
CVE page created: Wed Feb 24 12:22:25 2021CVE page last modified: Tue Jan 2 15:20:56 2024