{"id":"ALSA-2025:7438","summary":"Important: redis security update","details":"Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.  \n\nSecurity Fix(es):  \n\n  * redis: Redis DoS Vulnerability due to unlimited growth of output buffers abused by unauthenticated client (CVE-2025-21605)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","modified":"2026-01-30T02:00:03.656324Z","published":"2025-05-13T00:00:00Z","related":["CVE-2025-21605"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2025:7438"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-21605"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2361883"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2025-7438.html"}],"affected":[{"package":{"name":"redis","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/redis"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.18-1.el9_6"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2025:7438.json"}},{"package":{"name":"redis-devel","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/redis-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.18-1.el9_6"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2025:7438.json"}},{"package":{"name":"redis-doc","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/redis-doc"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.18-1.el9_6"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2025:7438.json"}}],"schema_version":"1.7.3"}