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OpenAdvisories
High ALSA-2025:0595 10 CVEs

Important: redis:6 security update

Published Jan 22, 2025 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

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: Integer overflow in the Redis HRANDFIELD and ZRANDMEMBER commands may lead to denial-of-service (CVE-2023-22458)
* redis: Integer overflow in the Redis SETRANGE and SORT/SORT_RO commands may result with false OOM panic (CVE-2022-35977)
* redis: Specially crafted SRANDMEMBER, ZRANDMEMBER, and HRANDFIELD commands can trigger an integer overflow (CVE-2022-36021)
* redis: String matching commands (like SCAN or KEYS) with a specially crafted pattern to trigger a denial-of-service attack (CVE-2023-25155)
* redis: Insufficient validation of HINCRBYFLOAT command (CVE-2023-28856)
* redis: heap overflow in the lua cjson and cmsgpack libraries (CVE-2022-24834)
* redis: possible bypass of Unix socket permissions on startup (CVE-2023-45145)
* redis: Lua library commands may lead to stack overflow and RCE in Redis (CVE-2024-31449)
* redis: Denial-of-service due to unbounded pattern matching in Redis (CVE-2024-31228)
* redis: Redis' Lua library commands may lead to remote code execution (CVE-2024-46981)

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 3

ReleasePackageFixed in
AlmaLinux · 8 redis 6.2.17-1.module_el8.10.0+3946+3de613d5
AlmaLinux · 8 redis-devel 6.2.17-1.module_el8.10.0+3946+3de613d5
AlmaLinux · 8 redis-doc 6.2.17-1.module_el8.10.0+3946+3de613d5

Vulnerabilities 10

  • High 7.0
    CVE-2022-24834 Public exploit EPSS 41%

    Heap overflow issue with the Lua cjson library used by Redis

    Redis is an in-memory database that persists on disk. A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson library, and result with heap corruption and potentially remote code execution. The problem exists in all versions…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine
  • High 7.0
    CVE-2024-31449 Public exploit

    Lua library commands may lead to stack overflow and RCE in Redis

    Redis is an open source, in-memory database that persists on disk. An authenticated user may use a specially crafted Lua script to trigger a stack buffer overflow in the bit library, which may potentially lead to remote code execution. The problem exists in a…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine
  • High 7.0
    CVE-2024-46981 Public exploit

    Redis' Lua library commands may lead to remote code execution

    Redis is an open source, in-memory database that persists on disk. An authenticated user may use a specially crafted Lua script to manipulate the garbage collector and potentially lead to remote code execution. The problem is fixed in 7.4.2, 7.2.7, and 6.2.17…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine
  • Medium 5.5
    CVE-2022-35977 EPSS 14%

    Integer overflow in certain command arguments can drive Redis to OOM panic

    Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted `SETRANGE` and `SORT(_RO)` commands can trigger an integer overflow, resulting with Redis attempting to allocate impossible amounts of memory and abort with an…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine
  • Medium 5.5
    CVE-2022-36021 EPSS 60%

    Redis string pattern matching can be abused to achieve Denial of Service

    Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. T…

    Redis Redis redis redis Debian Ubuntu Azure Linux
  • Medium 5.5
    CVE-2023-22458 EPSS 72%

    Integer overflow in multiple Redis commands can lead to denial-of-service

    Redis is an in-memory database that persists on disk. Authenticated users can issue a `HRANDFIELD` or `ZRANDMEMBER` command with specially crafted arguments to trigger a denial-of-service by crashing Redis with an assertion failure. This problem affects Redis…

    Redis Redis redis redis Debian Azure Linux Alpine
  • Medium 5.5
    CVE-2023-25155

    Integer Overflow in several Redis commands can lead to denial of service.

    Redis is an in-memory database that persists on disk. Authenticated users issuing specially crafted `SRANDMEMBER`, `ZRANDMEMBER`, and `HRANDFIELD` commands can trigger an integer overflow, resulting in a runtime assertion and termination of the Redis server p…

    Redis Redis redis redis Debian Ubuntu Azure Linux
  • Medium 5.5
    CVE-2023-28856

    `HINCRBYFLOAT` can be used to crash a redis-server process

    Redis is an open source, in-memory database that persists on disk. Authenticated users can use the `HINCRBYFLOAT` command to create an invalid hash field that will crash Redis on access in affected versions. This issue has been addressed in in versions 7.0.11…

    Redis Redis redis redis Debian Ubuntu Azure Linux
  • Medium 5.5
    CVE-2024-31228

    Denial-of-service due to unbounded pattern matching in Redis

    Redis is an open source, in-memory database that persists on disk. Authenticated users can trigger a denial-of-service by using specially crafted, long string match patterns on supported commands such as `KEYS`, `SCAN`, `PSUBSCRIBE`, `FUNCTION LIST`, `COMMAND…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine
  • Low 3.6
    CVE-2023-45145

    Redis Unix-domain socket may have be exposed with the wrong permissions for a short time window.

    Redis is an in-memory database that persists on disk. On startup, Redis begins listening on a Unix socket before adjusting its permissions to the user-provided configuration. If a permissive umask(2) is used, this creates a race condition that enables, during…

    Redis Redis redis redis Debian Ubuntu Azure Linux Alpine

References

  • report
    https://access.redhat.com/security/cve/CVE-2022-24834
  • report
    https://access.redhat.com/security/cve/CVE-2022-35977
  • report
    https://access.redhat.com/security/cve/CVE-2022-36021
  • report
    https://access.redhat.com/security/cve/CVE-2023-22458
  • report
    https://access.redhat.com/security/cve/CVE-2023-25155
  • report
    https://access.redhat.com/security/cve/CVE-2023-28856
  • report
    https://access.redhat.com/security/cve/CVE-2023-45145
  • report
    https://access.redhat.com/security/cve/CVE-2024-31228
  • report
    https://access.redhat.com/security/cve/CVE-2024-31449
  • report
    https://access.redhat.com/security/cve/CVE-2024-46981
  • report
    https://bugzilla.redhat.com/2163132
  • report
    https://bugzilla.redhat.com/2163133
  • report
    https://bugzilla.redhat.com/2174305
  • report
    https://bugzilla.redhat.com/2174306
  • report
    https://bugzilla.redhat.com/2187525
  • report
    https://bugzilla.redhat.com/2221662
  • report
    https://bugzilla.redhat.com/2244940
  • report
    https://bugzilla.redhat.com/2317056
  • report
    https://bugzilla.redhat.com/2317058
  • report
    https://bugzilla.redhat.com/2336004
  • advisory
    https://errata.almalinux.org/8/ALSA-2025-0595.html