Summary
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.
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | redis | 6.0.9-5.module_el8.5.0+67+a3c431d9 |
| AlmaLinux · 8 | redis | 6.0.9-5.module_el8.4.0+2584+1bb0d2aa |
| AlmaLinux · 8 | redis-devel | 6.0.9-5.module_el8.5.0+67+a3c431d9 |
| AlmaLinux · 8 | redis-devel | 6.0.9-5.module_el8.4.0+2584+1bb0d2aa |
| AlmaLinux · 8 | redis-doc | 6.0.9-5.module_el8.4.0+2584+1bb0d2aa |
Vulnerabilities 6
-
High 7.5CVE-2021-32626 EPSS 16%
Lua scripts can overflow the heap-based Lua stack in Redis
Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with hea…
-
High 7.5
Integer overflow issue with Streams in Redis
Redis is an open source, in-memory database that persists on disk. In affected versions an integer overflow bug in Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default pr…
-
High 7.5CVE-2021-32628 EPSS 13%
Vulnerability in handling large ziplists
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the ziplist data structure used by all versions of Redis can be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability in…
-
High 7.5
DoS vulnerability in Redis
Redis is an open source, in-memory database that persists on disk. When parsing an incoming Redis Standard Protocol (RESP) request, Redis allocates memory according to user-specified values which determine the number of elements (in the multi-bulk header) and…
-
High 7.5
Integer overflow issue with intsets in Redis
Redis is an open source, in-memory database that persists on disk. An integer overflow bug affecting all versions of Redis can be exploited to corrupt the heap and potentially be used to leak arbitrary contents of the heap or trigger remote code execution. Th…
-
High 7.5
Integer overflow issue with strings in Redis
Redis is an open source, in-memory database that persists on disk. An integer overflow bug in the underlying string library can be used to corrupt the heap and potentially result with denial of service or remote code execution. The vulnerability involves chan…