Upstream information

CVE-2025-21605 at MITRE

Description

Redis is an open source, in-memory database that persists on disk. In versions starting at 2.6 and prior to 7.4.3, An unauthenticated client can cause unlimited growth of output buffers, until the server runs out of memory or is killed. By default, the Redis configuration does not limit the output buffer of normal clients (see client-output-buffer-limit). Therefore, the output buffer can grow unlimitedly over time. As a result, the service is exhausted and the memory is unavailable. When password authentication is enabled on the Redis server, but no password is provided, the client can still cause the output buffer to grow from "NOAUTH" responses until the system will run out of memory. This issue has been patched in version 7.4.3. An additional workaround to mitigate this problem without patching the redis-server executable is to block access to prevent unauthenticated users from connecting to Redis. This can be done in different ways. Either using network access control tools like firewalls, iptables, security groups, etc, or enabling TLS and requiring users to authenticate using client side certificates.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v3 Scores
  CNA (GitHub) 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
CVSS v4 Scores
  SUSE
Base Score 8.7
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements None
Privileges Required None
User Interaction None
Vulnerable System Confidentiality Impact None
Vulnerable System Integrity Impact None
Vulnerable System Availability Impact High
Subsequent System Confidentiality Impact None
Subsequent System Integrity Impact None
Subsequent System Availability Impact None
CVSSv4 Version 4.0
SUSE Bugzilla entry: 1241708 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 8
  • redis >= 6.2.18-1.module+el8.10.0+23050+05ea4e95
  • redis-devel >= 6.2.18-1.module+el8.10.0+23050+05ea4e95
  • redis-doc >= 6.2.18-1.module+el8.10.0+23050+05ea4e95
 Patchnames:
RHSA-2025:7686
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-1420
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-1420
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS
  • redis >= 6.2.6-150400.3.34.1
  • redis7 >= 7.0.8-150500.3.18.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1419
SUSE-SLE-Product-HPC-15-SP5-ESPOS-2025-1420
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS
  • redis >= 6.2.6-150400.3.34.1
  • redis7 >= 7.0.8-150500.3.18.1
 Patchnames:
SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1419
SUSE-SLE-Product-HPC-15-SP5-LTSS-2025-1420
SUSE Linux Enterprise High Performance Computing 15 SP6
SUSE Linux Enterprise Module for Server Applications 15 SP6
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server for SAP Applications 15 SP6
  • redis >= 7.2.4-150600.3.9.1
  • redis7 >= 7.0.8-150600.8.9.1
  • valkey >= 8.0.2-150600.13.6.1
  • valkey-compat-redis >= 8.0.2-150600.13.6.1
  • valkey-devel >= 8.0.2-150600.13.6.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP6-2025-1432
SUSE-SLE-Module-Server-Applications-15-SP6-2025-1433
SUSE-SLE-Module-Server-Applications-15-SP6-2025-1566
SUSE Linux Enterprise Server 15 SP4-LTSS
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP4-LTSS-2025-1420
SUSE Linux Enterprise Server 15 SP5-LTSS
  • redis >= 6.2.6-150400.3.34.1
  • redis7 >= 7.0.8-150500.3.18.1
 Patchnames:
SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1419
SUSE-SLE-Product-SLES-15-SP5-LTSS-2025-1420
SUSE Linux Enterprise Server for SAP Applications 15 SP4
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP4-2025-1420
SUSE Linux Enterprise Server for SAP Applications 15 SP5
  • redis >= 6.2.6-150400.3.34.1
  • redis7 >= 7.0.8-150500.3.18.1
 Patchnames:
SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1419
SUSE-SLE-Product-SLES_SAP-15-SP5-2025-1420
SUSE Manager Proxy 4.3
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1420
SUSE Manager Retail Branch Server 4.3
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Retail-Branch-Server-4.3-2025-1420
SUSE Manager Server 4.3
  • redis >= 6.2.6-150400.3.34.1
 Patchnames:
SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1420
openSUSE Leap 15.6
  • redis >= 7.2.4-150600.3.9.1
  • redis7 >= 7.0.8-150600.8.9.1
  • valkey >= 8.0.2-150600.13.6.1
  • valkey-compat-redis >= 8.0.2-150600.13.6.1
  • valkey-devel >= 8.0.2-150600.13.6.1
 Patchnames:
openSUSE-SLE-15.6-2025-1432
openSUSE-SLE-15.6-2025-1433
openSUSE-SLE-15.6-2025-1566
openSUSE Tumbleweed
  • valkey >= 8.0.3-1.1
  • valkey-compat-redis >= 8.0.3-1.1
  • valkey-devel >= 8.0.3-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-15035

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 15 SP6 redis Released
SUSE Linux Enterprise High Performance Computing 15 SP6 redis7 Released
SUSE Linux Enterprise High Performance Computing 15 SP6 valkey Released
SUSE Linux Enterprise Module for Server Applications 15 SP6 redis Released
SUSE Linux Enterprise Module for Server Applications 15 SP6 redis7 Released
SUSE Linux Enterprise Module for Server Applications 15 SP6 valkey Released
SUSE Linux Enterprise Server 15 SP6 redis Released
SUSE Linux Enterprise Server 15 SP6 redis7 Released
SUSE Linux Enterprise Server 15 SP6 valkey Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 redis Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 redis7 Released
SUSE Linux Enterprise Server for SAP Applications 15 SP6 valkey Released
SUSE Manager Proxy 4.3 redis Released
SUSE Manager Retail Branch Server 4.3 redis Released
SUSE Manager Server 4.3 redis Released
openSUSE Leap 15.6 redis Released
openSUSE Leap 15.6 redis7 Released
openSUSE Leap 15.6 valkey Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS redis Released
SUSE Linux Enterprise High Performance Computing 15 SP5 redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP5 redis7 Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis Released
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis7 Released
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis Released
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis7 Released
SUSE Linux Enterprise Module for Server Applications 15 SP3 redis Affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 redis Affected
SUSE Linux Enterprise Module for Server Applications 15 SP5 redis Affected
SUSE Linux Enterprise Module for Server Applications 15 SP5 redis7 Affected
SUSE Linux Enterprise Server 15 SP3 redis Affected
SUSE Linux Enterprise Server 15 SP3-LTSS redis Affected
SUSE Linux Enterprise Server 15 SP4 redis Affected
SUSE Linux Enterprise Server 15 SP4-LTSS redis Released
SUSE Linux Enterprise Server 15 SP5 redis Affected
SUSE Linux Enterprise Server 15 SP5 redis7 Affected
SUSE Linux Enterprise Server 15 SP5-LTSS redis Released
SUSE Linux Enterprise Server 15 SP5-LTSS redis7 Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7 redis Affected
SUSE Enterprise Storage 7.1 redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS redis Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS redis Released
SUSE Linux Enterprise Module for Server Applications 15 SP2 redis Affected
SUSE Linux Enterprise Real Time 15 SP2 redis Affected
SUSE Linux Enterprise Real Time 15 SP3 redis Affected
SUSE Linux Enterprise Real Time 15 SP4 redis Affected
SUSE Linux Enterprise Server 15 SP2 redis Affected
SUSE Linux Enterprise Server 15 SP2-BCL redis Affected
SUSE Linux Enterprise Server 15 SP2-LTSS redis Affected
SUSE Linux Enterprise Server 15 SP3-BCL redis Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 redis Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 redis Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 redis Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis Released
SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis7 Released
SUSE Manager Proxy 4.1 redis Affected
SUSE Manager Proxy 4.2 redis Affected
SUSE Manager Retail Branch Server 4.1 redis Affected
SUSE Manager Retail Branch Server 4.2 redis Affected
SUSE Manager Server 4.1 redis Affected
SUSE Manager Server 4.2 redis Affected
openSUSE Leap 15.3 redis Affected
openSUSE Leap 15.4 redis Released
openSUSE Leap 15.5 redis Affected
openSUSE Leap 15.5 redis7 Released
Container Status
suse/valkey valkeyIn progress

SUSE Timeline for this CVE

CVE page created: Wed Apr 23 20:01:46 2025
CVE page last modified: Sun May 18 20:10:04 2025