CVE-2025-21605 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-21605 Interim 1 25 2026-03-05T01:23:52Z current 2025-04-24T23:16:04Z 2026-03-05T01:23:52Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-21605 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. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-May/001290.html E-Mail link for RHSA-2025:7429 https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-May/001312.html E-Mail link for RHSA-2025:7438 https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-May/001146.html E-Mail link for RHSA-2025:7686 https://lists.suse.com/pipermail/sle-updates/2025-June/040284.html E-Mail link for SUSE-SU-2025:01942-1 https://lists.suse.com/pipermail/sle-updates/2025-June/040366.html E-Mail link for SUSE-SU-2025:02010-1 https://lists.suse.com/pipermail/sle-updates/2025-April/039118.html E-Mail link for SUSE-SU-2025:1419-1 https://lists.suse.com/pipermail/sle-updates/2025-April/039117.html E-Mail link for SUSE-SU-2025:1420-1 https://lists.suse.com/pipermail/sle-updates/2025-May/039126.html E-Mail link for SUSE-SU-2025:1432-1 https://lists.suse.com/pipermail/sle-updates/2025-May/039125.html E-Mail link for SUSE-SU-2025:1433-1 https://lists.suse.com/pipermail/sle-security-updates/2025-May/020843.html E-Mail link for SUSE-SU-2025:1566-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BSPBVBDGOIAOC7YYCCDLC4XBLWKHYLWL/ E-Mail link for openSUSE-SU-2025:15035-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings Container private-registry/harbor-valkey:8.0.2-2.17 Container suse/valkey:8.0.2-8.1 Image pr_15_6 SUSE Enterprise Storage 7.1 SUSE Liberty Linux 8 SUSE Liberty Linux 9 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Linux Enterprise Server 15 SP2-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP4-TERADATA SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 openSUSE Leap 15.6 openSUSE Tumbleweed redis redis-6.0.14-150200.6.35.1 redis-6.2.18-1.module+el8.10.0+23050+05ea4e95 redis-6.2.6-150400.3.34.1 redis-7.2.4-150600.3.9.1 redis-7.2.8-1.module+el9.6.0+23049+8374f320 redis-8.0.2-1.1 redis-devel-6.2.18-1.module+el8.10.0+23050+05ea4e95 redis-devel-7.2.8-1.module+el9.6.0+23049+8374f320 redis-doc-6.2.18-1.module+el8.10.0+23050+05ea4e95 redis-doc-7.2.8-1.module+el9.6.0+23049+8374f320 redis7-7.0.8-150500.3.18.1 redis7-7.0.8-150600.8.9.1 valkey-8.0.2-150600.13.6.1 valkey-8.0.2-150700.3.5.1 valkey-8.0.3-1.1 valkey-8.0.4-160000.2.2 valkey-compat-redis-8.0.2-150600.13.6.1 valkey-compat-redis-8.0.2-150700.3.5.1 valkey-compat-redis-8.0.3-1.1 valkey-compat-redis-8.0.4-160000.2.2 valkey-devel-8.0.2-150600.13.6.1 valkey-devel-8.0.2-150700.3.5.1 valkey-devel-8.0.3-1.1 valkey-devel-8.0.4-160000.2.2 valkey-8.0.2-150600.13.6.1 as a component of Container private-registry/harbor-valkey:8.0.2-2.17 valkey-8.0.2-150600.13.6.1 as a component of Container suse/valkey:8.0.2-8.1 valkey-8.0.2-150600.13.6.1 as a component of Image pr_15_6 redis-6.0.14-150200.6.35.1 as a component of SUSE Enterprise Storage 7.1 redis-6.2.18-1.module+el8.10.0+23050+05ea4e95 as a component of SUSE Liberty Linux 8 redis-devel-6.2.18-1.module+el8.10.0+23050+05ea4e95 as a component of SUSE Liberty Linux 8 redis-doc-6.2.18-1.module+el8.10.0+23050+05ea4e95 as a component of SUSE Liberty Linux 8 redis-7.2.8-1.module+el9.6.0+23049+8374f320 as a component of SUSE Liberty Linux 9 redis-devel-7.2.8-1.module+el9.6.0+23049+8374f320 as a component of SUSE Liberty Linux 9 redis-doc-7.2.8-1.module+el9.6.0+23049+8374f320 as a component of SUSE Liberty Linux 9 redis-6.0.14-150200.6.35.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis7-7.0.8-150500.3.18.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis7-7.0.8-150500.3.18.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS redis-7.2.4-150600.3.9.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 redis7-7.0.8-150600.8.9.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 valkey-8.0.2-150600.13.6.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 valkey-compat-redis-8.0.2-150600.13.6.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 valkey-devel-8.0.2-150600.13.6.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 valkey-8.0.2-150700.3.5.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP7 valkey-compat-redis-8.0.2-150700.3.5.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP7 valkey-devel-8.0.2-150700.3.5.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP7 redis-6.0.14-150200.6.35.1 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA redis-6.0.14-150200.6.35.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP4-TERADATA redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS redis7-7.0.8-150500.3.18.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS valkey-8.0.4-160000.2.2 as a component of SUSE Linux Enterprise Server 16.0 valkey-compat-redis-8.0.4-160000.2.2 as a component of SUSE Linux Enterprise Server 16.0 valkey-devel-8.0.4-160000.2.2 as a component of SUSE Linux Enterprise Server 16.0 redis-6.0.14-150200.6.35.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 redis-6.2.6-150400.3.34.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis7-7.0.8-150500.3.18.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 redis-6.2.6-150400.3.34.1 as a component of SUSE Manager Proxy 4.3 redis-6.2.6-150400.3.34.1 as a component of SUSE Manager Retail Branch Server 4.3 redis-6.2.6-150400.3.34.1 as a component of SUSE Manager Server 4.3 redis-7.2.4-150600.3.9.1 as a component of openSUSE Leap 15.6 redis7-7.0.8-150600.8.9.1 as a component of openSUSE Leap 15.6 valkey-8.0.2-150600.13.6.1 as a component of openSUSE Leap 15.6 valkey-compat-redis-8.0.2-150600.13.6.1 as a component of openSUSE Leap 15.6 valkey-devel-8.0.2-150600.13.6.1 as a component of openSUSE Leap 15.6 redis-8.0.2-1.1 as a component of openSUSE Tumbleweed valkey-8.0.3-1.1 as a component of openSUSE Tumbleweed valkey-compat-redis-8.0.3-1.1 as a component of openSUSE Tumbleweed valkey-devel-8.0.3-1.1 as a component of openSUSE Tumbleweed redis as a component of SUSE Linux Enterprise Server 15 SP2-LTSS 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. CVE-2025-21605 Container private-registry/harbor-valkey:8.0.2-2.17:valkey-8.0.2-150600.13.6.1 Container suse/valkey:8.0.2-8.1:valkey-8.0.2-150600.13.6.1 Image pr_15_6:valkey-8.0.2-150600.13.6.1 SUSE Enterprise Storage 7.1:redis-6.0.14-150200.6.35.1 SUSE Liberty Linux 8:redis-6.2.18-1.module+el8.10.0+23050+05ea4e95 SUSE Liberty Linux 8:redis-devel-6.2.18-1.module+el8.10.0+23050+05ea4e95 SUSE Liberty Linux 8:redis-doc-6.2.18-1.module+el8.10.0+23050+05ea4e95 SUSE Liberty Linux 9:redis-7.2.8-1.module+el9.6.0+23049+8374f320 SUSE Liberty Linux 9:redis-devel-7.2.8-1.module+el9.6.0+23049+8374f320 SUSE Liberty Linux 9:redis-doc-7.2.8-1.module+el9.6.0+23049+8374f320 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:redis-6.0.14-150200.6.35.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:redis7-7.0.8-150500.3.18.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:redis7-7.0.8-150500.3.18.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:redis-7.2.4-150600.3.9.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:redis7-7.0.8-150600.8.9.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:valkey-8.0.2-150600.13.6.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:valkey-compat-redis-8.0.2-150600.13.6.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:valkey-devel-8.0.2-150600.13.6.1 SUSE Linux Enterprise Module for Server Applications 15 SP7:valkey-8.0.2-150700.3.5.1 SUSE Linux Enterprise Module for Server Applications 15 SP7:valkey-compat-redis-8.0.2-150700.3.5.1 SUSE Linux Enterprise Module for Server Applications 15 SP7:valkey-devel-8.0.2-150700.3.5.1 SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA:redis-6.0.14-150200.6.35.1 SUSE Linux Enterprise Server 15 SP3-LTSS:redis-6.0.14-150200.6.35.1 SUSE Linux Enterprise Server 15 SP4-LTSS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise Server 15 SP4-TERADATA:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise Server 15 SP5-LTSS:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise Server 15 SP5-LTSS:redis7-7.0.8-150500.3.18.1 SUSE Linux Enterprise Server 16.0:valkey-8.0.4-160000.2.2 SUSE Linux Enterprise Server 16.0:valkey-compat-redis-8.0.4-160000.2.2 SUSE Linux Enterprise Server 16.0:valkey-devel-8.0.4-160000.2.2 SUSE Linux Enterprise Server for SAP Applications 15 SP3:redis-6.0.14-150200.6.35.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:redis-6.2.6-150400.3.34.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:redis7-7.0.8-150500.3.18.1 SUSE Manager Proxy 4.3:redis-6.2.6-150400.3.34.1 SUSE Manager Retail Branch Server 4.3:redis-6.2.6-150400.3.34.1 SUSE Manager Server 4.3:redis-6.2.6-150400.3.34.1 openSUSE Leap 15.6:redis-7.2.4-150600.3.9.1 openSUSE Leap 15.6:redis7-7.0.8-150600.8.9.1 openSUSE Leap 15.6:valkey-8.0.2-150600.13.6.1 openSUSE Leap 15.6:valkey-compat-redis-8.0.2-150600.13.6.1 openSUSE Leap 15.6:valkey-devel-8.0.2-150600.13.6.1 openSUSE Tumbleweed:redis-8.0.2-1.1 openSUSE Tumbleweed:valkey-8.0.3-1.1 openSUSE Tumbleweed:valkey-compat-redis-8.0.3-1.1 openSUSE Tumbleweed:valkey-devel-8.0.3-1.1 important 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H