RHSA-2021:3946 — Security Advisory

An update for the redis:5 module is now available for Red Hat Enterprise Linux 8.1 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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.

Security Fix(es):

• redis: Lua scripts can overflow the heap-based Lua stack (CVE-2021-32626)

• redis: Integer overflow issue with Streams (CVE-2021-32627)

• redis: Integer overflow bug in the ziplist data structure (CVE-2021-32628)

• redis: Denial of service via Redis Standard Protocol (RESP) request (CVE-2021-32675)

• redis: Integer overflow issue with intsets (CVE-2021-32687)

• redis: Integer overflow issue with strings (CVE-2021-41099)

For 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.