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RS: Copy RS 6.4.2-103 release notes to 6.4 version branch #3212

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---
Title: Redis Enterprise Software release notes 6.4.2-103 (October 2023)
linkTitle: 6.4.2-103 (October 2023)
description: RHEL 8.8 support. RediSearch v2.6.12. RedisGraph v2.10.12. RedisTimeSeries v1.8.11 Log when CCS schema changes. Bug fixes.
compatibleOSSVersion: Redis 6.2.10
weight: 66
alwaysopen: false
categories: ["RS"]
aliases:
---

This is a maintenance release for ​[​Redis Enterprise Software version 6.4.2](https://redis.com/redis-enterprise-software/download-center/software/).

## Highlights

This version offers:

- RHEL 8.8 support

- RediSearch v2.6.12, RedisGraph v2.10.12, and RedisTimeSeries v1.8.11

- Log when CCS schema changes

- Bug fixes

## New in this release

### Enhancements

- RHEL 8.8 support

- Log when CCS schema changes due to schema upgrade

#### Redis modules

Redis Enterprise Software version 6.4.2-103 includes the following Redis Stack modules:

- [RediSearch v2.6.12](https://docs.redis.com/latest/stack/release-notes/redisearch/redisearch-2.6-release-notes/)

- [RedisJSON v2.4.7](https://docs.redis.com/latest/stack/release-notes/redisjson/redisjson-2.4-release-notes/)

- [RedisBloom v2.4.5](https://docs.redis.com/latest/stack/release-notes/redisbloom/redisbloom-2.4-release-notes/)

- [RedisGraph v2.10.12](https://docs.redis.com/latest/stack/release-notes/redisgraph/redisgraph-2.10-release-notes/)

- [RedisTimeSeries v1.8.11](https://docs.redis.com/latest/stack/release-notes/redistimeseries/redistimeseries-1.8-release-notes/)

### Resolved issues

- RS109744 - Fixed an issue where node removal sometimes got stuck in a `starting` state when `wait_for_persistence` was enabled.

- RS76441 - For databases created before Redis Enterprise Software v6.0.20, `crdt_syncer_auto_oom_unlatch` was `EMPTY` and `disabled` by default. `crdt_syncer_auto_oom_unlatch` is now enabled by default for new databases.

## Version changes

### Supported platforms

<span title="Check mark icon">&#x2705;</span> Supported – The platform is supported for this version of Redis Enterprise Software.

<span title="Warning icon">&#x26A0;&#xFE0F;</span> Deprecated – The platform is still supported for this version of Redis Enterprise Software, but support will be removed in a future release.

<span title="X icon">&#x274c;</span> End of life – Platform support ended in this version of Redis Enterprise Software.

| Redis Enterprise | 7.2.4 | 6.4.2 | 6.2.18 | 6.2.12 | 6.2.10 | 6.2.8 | 6.2.4 |
|------------------|-------|-------|--------|--------|--------|--------|-------|
| **Release date** | Aug<br />2023 | Feb<br />2023 | Sept<br />2022 | Aug<br />2022 | Feb<br />2022 | Oct<br />2021 | Aug<br />2021 |
| [**End-of-life date**]({{<relref "/rs/installing-upgrading/product-lifecycle#endoflife-schedule">}}) | – | Feb<br />2025 | Aug<br />2024 | Aug<br />2024 | Aug<br />2024 | Aug<br />2024 | Aug<br />2024 |
| **Ubuntu**<sup>[1](#table-note-1)</sup> |
| 20.04 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span><sup>[6](#table-note-6)</sup> | – | – | – | – | – |
| 18.04 | <span title="Deprecated">&#x26A0;&#xFE0F;</span> | <span title="Supported"><span title="Supported">&#x2705;</span></span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| 16.04 | <span title="End of life">&#x274c;</span> | <span title="Deprecated">&#x26A0;&#xFE0F;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| **RHEL & CentOS**<sup>[2](#table-note-2)</sup>
| 8.8 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span><sup>[8](#table-note-8)</sup> | – | – | – | – | – |
| 8.7 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | – | – | – | – | – |
| 8.5-8.6 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | – | – |
| 8.0-8.4 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | – |
| 7.0-7.9 | <span title="Deprecated">&#x26A0;&#xFE0F;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| **Oracle Linux**<sup>[3](#table-note-3)</sup> |
| 8 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | – | – |
| 7 | <span title="Deprecated">&#x26A0;&#xFE0F;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| **Rocky Linux**<sup>[3](#table-note-3)</sup> |
| 8 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | – | – | – | – |
| **Amazon Linux** |
| 2 | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span><sup>[7](#table-note-7)</sup> | – | – | – | – | – |
| 1 | <span title="Deprecated">&#x26A0;&#xFE0F;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| **Docker**<sup>[4](#table-note-4)</sup> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |
| **Kubernetes**<sup>[5](#table-note-5)</sup> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> | <span title="Supported">&#x2705;</span> |

1. <a name="table-note-1" style="display: block; height: 80px; margin-top: -80px;"></a>The server version of Ubuntu is recommended for production installations. The desktop version is only recommended for development deployments.

2. <a name="table-note-2" style="display: block; height: 80px; margin-top: -80px;"></a>RHEL and CentOS deployments require OpenSSL 1.0.2 and [firewall configuration]({{<relref "/rs/installing-upgrading/configuring/centos-rhel-firewall">}}).

3. <a name="table-note-3" style="display: block; height: 80px; margin-top: -80px;"></a>Based on the corresponding RHEL version.

4. <a name="table-note-4" style="display: block; height: 80px; margin-top: -80px;"></a>
[Docker images]({{<relref "/rs/installing-upgrading/quickstarts/docker-quickstart">}}) of Redis Enterprise Software are certified for development and testing only.

5. <a name="table-note-5" style="display: block; height: 80px; margin-top: -80px;"></a>See the [Redis Enterprise for Kubernetes documentation]({{<relref "/kubernetes">}}).

6. <a name="table-note-6" style="display: block; height: 80px; margin-top: -80px;"></a>Ubuntu 20.04 support was added in Redis Enterprise Software [6.4.2-43]({{<relref "/rs/release-notes/rs-6-4-2-releases/rs-6-4-2-43">}}).

7. <a name="table-note-7" style="display: block; height: 80px; margin-top: -80px;"></a>A release candidate for Amazon Linux 2 support was added in Redis Enterprise Software [6.4.2-61]({{<relref "/rs/release-notes/rs-6-4-2-releases/rs-6-4-2-61">}}). Official support for Amazon Linux 2 was added in Redis Enterprise Software [6.4.2-69]({{<relref "/rs/release-notes/rs-6-4-2-releases/rs-6-4-2-69">}}).

8. <a name="table-note-8" style="display: block; height: 80px; margin-top: -80px;"></a>Redis Enterprise Software [6.4.2-103]({{<relref "/rs/release-notes/rs-6-4-2-releases/rs-6-4-2-103">}}) and later supports RHEL 8.8.

## Downloads

The following table shows the MD5 checksums for the available packages:

| Package | MD5 checksum (6.4.2-103 October release) |
|---------|---------------------------------------|
| Ubuntu 18 | 6544fd5d1625ab9da7b0d99f195fe4f1 |
| Ubuntu 20 | d623c8458a28f09a1e6ae0c0a8650023 |
| RedHat Enterprise Linux (RHEL) 7<br/>Oracle Enterprise Linux (OL) 7 | 06cc49ddbf560c516c52ae721c2806cd |
| RedHat Enterprise Linux (RHEL) 8<br/>Oracle Enterprise Linux (OL) 8 <br/>Rocky Enterprise Linux | 2d799af5ee03c0a94660a60cd99ea361 |
| Amazon Linux 2 | f2c5c2b5e879b8fd6792336f757593e2 |

## Security

#### Open source Redis security fixes compatibility

As part of Redis's commitment to security, Redis Enterprise Software implements the latest [security fixes](https://github.com/redis/redis/releases) available with [open source Redis](https://github.com/redis/redis). Redis Enterprise has already included the fixes for the relevant CVEs.

Some CVEs announced for open source Redis do not affect Redis Enterprise due to different or additional functionality available in Redis Enterprise that is not available in open source Redis.


Redis Enterprise 6.4.2-103 supports open source Redis 6.2 and 6.0. Below is the list of open source Redis CVEs fixed by version.

Redis 6.2.x:

- (CVE-2023-28856) Authenticated users can use the `HINCRBYFLOAT` command to create an invalid hash field that will crash Redis on access. (Redis 6.2.12)

- (CVE-2023-25155) Specially crafted `SRANDMEMBER`, `ZRANDMEMBER`, and `HRANDFIELD` commands can trigger an integer overflow, resulting in a runtime assertion and termination of the Redis server process. (Redis 6.2.11)

- (CVE-2023-22458) Integer overflow in the Redis `HRANDFIELD` and `ZRANDMEMBER` commands can lead to denial-of-service. (Redis 6.2.9)

- (CVE-2022-36021) 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. (Redis 6.2.11)

- (CVE-2022-35977) Integer overflow in the Redis `SETRANGE` and `SORT`/`SORT_RO` commands can drive Redis to OOM panic. (Redis 6.2.9)

- (CVE-2022-24834) A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson and cmsgpack libraries, and result in heap corruption and potentially remote code execution. The problem exists in all versions of Redis with Lua scripting support, starting from 2.6, and affects only authenticated and authorized users. (Redis 6.2.13)

- (CVE-2022-24736) An attacker attempting to load a specially crafted Lua script can cause NULL pointer dereference which will result in a crash of the `redis-server` process. This issue affects all versions of Redis. (Redis 6.2.7)

- (CVE-2022-24735) By exploiting weaknesses in the Lua script execution environment, an attacker with access to Redis can inject Lua code that will execute with the (potentially higher) privileges of another Redis user. (Redis 6.2.7)

- (CVE-2021-41099) Integer to heap buffer overflow handling certain string commands and network payloads, when `proto-max-bulk-len` is manually configured to a non-default, very large value. (Redis 6.2.6)

- (CVE-2021-32762) Integer to heap buffer overflow issue in `redis-cli` and `redis-sentinel` parsing large multi-bulk replies on some older and less common platforms. (Redis 6.2.6)

- (CVE-2021-32761) An integer overflow bug in Redis version 2.2 or newer can be exploited using the `BITFIELD` command to corrupt the heap and potentially result with remote code execution. (Redis 6.2.5)

- (CVE-2021-32687) Integer to heap buffer overflow with intsets, when `set-max-intset-entries` is manually configured to a non-default, very large value. (Redis 6.2.6)

- (CVE-2021-32675) Denial Of Service when processing RESP request payloads with a large number of elements on many connections. (Redis 6.2.6)

- (CVE-2021-32672) Random heap reading issue with Lua Debugger. (Redis 6.2.6)

- (CVE-2021-32628) Integer to heap buffer overflow handling ziplist-encoded data types, when configuring a large, non-default value for `hash-max-ziplist-entries`, `hash-max-ziplist-value`, `zset-max-ziplist-entries` or `zset-max-ziplist-value`. (Redis 6.2.6)

- (CVE-2021-32627) Integer to heap buffer overflow issue with streams, when configuring a non-default, large value for `proto-max-bulk-len` and `client-query-buffer-limit`. (Redis 6.2.6)

- (CVE-2021-32626) Specially crafted Lua scripts may result with Heap buffer overflow. (Redis 6.2.6)

- (CVE-2021-32625) An integer overflow bug in Redis version 6.0 or newer can be exploited using the STRALGO LCS command to corrupt the heap and potentially result with remote code execution. This is a result of an incomplete fix by CVE-2021-29477. (Redis 6.2.4)

- (CVE-2021-29478) An integer overflow bug in Redis 6.2 could be exploited to corrupt the heap and potentially result with remote code execution. The vulnerability involves changing the default set-max-intset-entries configuration value, creating a large set key that consists of integer values and using the COPY command to duplicate it. The integer overflow bug exists in all versions of Redis starting with 2.6, where it could result with a corrupted RDB or DUMP payload, but not exploited through COPY (which did not exist before 6.2). (Redis 6.2.3)

- (CVE-2021-29477) An integer overflow bug in Redis version 6.0 or newer could be exploited using the STRALGO LCS command to corrupt the heap and potentially result in remote code execution. The integer overflow bug exists in all versions of Redis starting with 6.0. (Redis 6.2.3)

Redis 6.0.x:

- (CVE-2022-24834) A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson and cmsgpack libraries, and result in heap corruption and potentially remote code execution. The problem exists in all versions of Redis with Lua scripting support, starting from 2.6, and affects only authenticated and authorized users. (Redis 6.0.20)

- (CVE-2023-28856) Authenticated users can use the `HINCRBYFLOAT` command to create an invalid hash field that will crash Redis on access. (Redis 6.0.19)

- (CVE-2023-25155) Specially crafted `SRANDMEMBER`, `ZRANDMEMBER`, and `HRANDFIELD` commands can trigger an integer overflow, resulting in a runtime assertion and termination of the Redis server process. (Redis 6.0.18)

- (CVE-2022-36021) 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. (Redis 6.0.18)

- (CVE-2022-35977) Integer overflow in the Redis `SETRANGE` and `SORT`/`SORT_RO` commands can drive Redis to OOM panic. (Redis 6.0.17)
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