{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "* SECURITY UPDATE: Memory exhaustion via unauthenticated client output buffer\n - debian/patches/0016-CVE-2025-21605.patch: cap the output buffer of\n unauthenticated clients in checkClientOutputBufferLimits() in\n src/networking.c, so a client that never reads its NOAUTH replies\n cannot grow the buffer without bound. Backport of upstream redis\n commit 5e93f9cb9 (6.2.18) as shipped by Debian for bullseye in\n 5:6.0.16-1+deb11u9 (DLA-4162-1), adapted to 5.0 by spelling the\n condition as server.requirepass && !c->authenticated, since 5.0\n predates the ACL subsystem and has no authRequired() helper.\n - CVE-2025-21605\n * SECURITY UPDATE: Client starvation via repeated accept() errors\n - debian/patches/0017-CVE-2025-48367.patch: add\n anetAcceptFailureNeedsRetry() to src/anet.c and retry the accept\n loop in acceptTcpHandler()/acceptUnixHandler() in src/networking.c\n and clusterAcceptHandler() in src/cluster.c, so a connection that\n fails at accept() time no longer aborts the whole batch and starves\n other pending clients. Backport of upstream redis commit 0fe674359\n (6.2.19) as shipped by Debian for bullseye in 5:6.0.16-1+deb11u9\n (DLA-4240-1); the acceptTLSHandler() hunk is dropped because 5.0\n has no TLS support.\n - CVE-2025-48367\n * SECURITY UPDATE: Double free via stream RDB payload with a shared NACK\n - debian/patches/0018-CVE-2026-66373.patch: reject a stream payload\n whose consumer PELs reference the same global-PEL NACK twice, in\n rdbLoadObject() in src/rdb.c, so RESTORE can no longer build two\n consumers sharing one streamNACK and have XGROUP DELCONSUMER free\n it twice. Backport of upstream redis commit 41a958720 (6.2.23) as\n shipped by Debian for bullseye and bookworm in 5:6.0.16-1+deb11u9\n and 5:7.0.15-1~deb12u9 (DLA-4722-1), taken verbatim in the Debian\n form that uses rdbExitReportCorruptRDB(). Note this CVE exists\n because of an incomplete fix for CVE-2026-25243, which is a\n separate change and is not addressed here.\n - CVE-2026-66373", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/debian10els/advisories/2026/clsa-2026_1788372462.json" } ], "tracking": { "current_release_date": "2026-09-02T18:08:33Z", "generator": { "date": "2026-09-02T18:08:33Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1788372462", "initial_release_date": "2026-09-02T18:08:33Z", "revision_history": [ { "date": "2026-09-02T18:08:33Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "Fix CVE(s): CVE-2025-21605, CVE-2025-48367, CVE-2026-66373" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Debian 10", "product": { "name": "Debian 10", "product_id": "Debian-10", "product_identification_helper": { "cpe": "cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Debian" } ], "category": "vendor", "name": "Software in the Public Interest, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "product": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "product_id": "redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els4?arch=all" } } }, { "category": "product_version", "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "product": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "product_id": "redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els3?arch=all" } } }, { "category": "product_version", "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "product": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "product_id": "redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els2?arch=all" } } } ], "category": "architecture", "name": "all" }, { "branches": [ { "category": "product_version", "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_id": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-tools@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els4?arch=amd64" } } }, { "category": "product_version", "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_id": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-server@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els4?arch=amd64" } } }, { "category": "product_version", "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_id": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-sentinel@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els4?arch=amd64" } } }, { "category": "product_version", "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_id": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-tools@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els3?arch=amd64" } } }, { "category": "product_version", "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_id": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-sentinel@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els3?arch=amd64" } } }, { "category": "product_version", "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_id": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-server@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els3?arch=amd64" } } }, { "category": "product_version", "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_id": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-server@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_id": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-sentinel@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els2?arch=amd64" } } }, { "category": "product_version", "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_id": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "product_identification_helper": { "purl": "pkg:deb/tuxcare/redis-tools@5:5.0.14-1%2Bdeb10u5%2Btuxcare.els2?arch=amd64" } } } ], "category": "architecture", "name": "amd64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els4.all as a component of Debian 10", "product_id": "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all" }, "product_reference": "redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" }, "product_reference": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" }, "product_reference": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" }, "product_reference": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els3.all as a component of Debian 10", "product_id": "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all" }, "product_reference": "redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" }, "product_reference": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" }, "product_reference": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" }, "product_reference": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64" }, "product_reference": "redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64" }, "product_reference": "redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-5:5.0.14-1+deb10u5+tuxcare.els2.all as a component of Debian 10", "product_id": "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all" }, "product_reference": "redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "relates_to_product_reference": "Debian-10" }, { "category": "default_component_of", "full_product_name": { "name": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64 as a component of Debian 10", "product_id": "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64" }, "product_reference": "redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "relates_to_product_reference": "Debian-10" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-66373", "cwe": { "id": "CWE-415", "name": "Double Free" }, "notes": [ { "category": "description", "text": "Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "known_affected": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-66373" }, { "category": "external", "summary": "https://github.com/berabuddies/redis-poc", "url": "https://github.com/berabuddies/redis-poc" }, { "category": "external", "summary": "https://github.com/redis/redis/compare/8.6.4...8.8.0", "url": "https://github.com/redis/redis/compare/8.6.4...8.8.0" }, { "category": "external", "summary": "https://github.com/redis/redis/pull/15081", "url": "https://github.com/redis/redis/pull/15081" }, { "category": "external", "summary": "https://news.ycombinator.com/item?id=49024938", "url": "https://news.ycombinator.com/item?id=49024938" }, { "category": "external", "summary": "https://x.com/Fried_rice/status/2080059356322918777", "url": "https://x.com/Fried_rice/status/2080059356322918777" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html", "url": "https://lists.debian.org/debian-lts-announce/2026/08/msg00012.html" } ], "release_date": "2026-07-25T01:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-02T18:07:44.985630Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462" }, { "category": "none_available", "date": "2026-07-25T01:16:00Z", "details": "Affected", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] }, { "cve": "CVE-2025-48367", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "description", "text": "Redis is an open source, in-memory database that persists on disk. An unauthenticated connection can cause repeated IP protocol errors, leading to client starvation and, ultimately, a denial of service. This vulnerability is fixed in 8.0.3, 7.4.5, 7.2.10, and 6.2.19.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "known_affected": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-48367" }, { "category": "external", "summary": "https://github.com/redis/redis/commit/bde62951accfc4bb0a516276fd0b4b307e140ce2", "url": "https://github.com/redis/redis/commit/bde62951accfc4bb0a516276fd0b4b307e140ce2" }, { "category": "external", "summary": "https://github.com/redis/redis/releases/tag/6.2.19", "url": "https://github.com/redis/redis/releases/tag/6.2.19" }, { "category": "external", "summary": "https://github.com/redis/redis/releases/tag/7.2.10", "url": "https://github.com/redis/redis/releases/tag/7.2.10" }, { "category": "external", "summary": "https://github.com/redis/redis/releases/tag/7.4.5", "url": "https://github.com/redis/redis/releases/tag/7.4.5" }, { "category": "external", "summary": "https://github.com/redis/redis/releases/tag/8.0.3", "url": "https://github.com/redis/redis/releases/tag/8.0.3" }, { "category": "external", "summary": "https://github.com/redis/redis/security/advisories/GHSA-4q32-c38c-pwgq", "url": "https://github.com/redis/redis/security/advisories/GHSA-4q32-c38c-pwgq" } ], "release_date": "2025-07-07T16:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-02T18:07:44.985630Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462" }, { "category": "none_available", "date": "2025-07-07T16:15:00Z", "details": "Affected", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "products": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ] }, { "cve": "CVE-2025-21605", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "description", "text": "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.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "known_affected": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2025-21605" }, { "category": "external", "summary": "https://github.com/redis/redis/releases/tag/7.4.3", "url": "https://github.com/redis/redis/releases/tag/7.4.3" }, { "category": "external", "summary": "https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff", "url": "https://github.com/redis/redis/security/advisories/GHSA-r67f-p999-2gff" }, { "category": "external", "summary": "https://github.com/valkey-io/valkey/releases/tag/8.1.1", "url": "https://github.com/valkey-io/valkey/releases/tag/8.1.1" }, { "category": "external", "summary": "https://lists.debian.org/debian-lts-announce/2025/05/msg00014.html", "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00014.html" }, { "category": "external", "summary": "https://www.vicarius.io/vsociety/posts/cve-2025-21605-detection-script-memory-exhaustion-vulnerability-in-redis-database", "url": "https://www.vicarius.io/vsociety/posts/cve-2025-21605-detection-script-memory-exhaustion-vulnerability-in-redis-database" }, { "category": "external", "summary": "https://www.vicarius.io/vsociety/posts/cve-2025-21605-mitigation-script-memory-exhaustion-vulnerability-in-redis-database", "url": "https://www.vicarius.io/vsociety/posts/cve-2025-21605-mitigation-script-memory-exhaustion-vulnerability-in-redis-database" } ], "release_date": "2025-04-23T16:15:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-02T18:07:44.985630Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els4.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els4.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els4.amd64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1788372462" }, { "category": "none_available", "date": "2025-04-23T16:15:00Z", "details": "Affected", "product_ids": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] } ], "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els2.all", "Debian-10:redis-5:5.0.14-1+deb10u5+tuxcare.els3.all", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-sentinel-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-server-5:5.0.14-1+deb10u5+tuxcare.els3.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els2.amd64", "Debian-10:redis-tools-5:5.0.14-1+deb10u5+tuxcare.els3.amd64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }