Redis Enterprise Software release notes 6.4.2-103 (October 2023)

RHEL 8.8 support. RediSearch v2.6.12. RedisGraph v2.10.12. RedisTimeSeries v1.8.11 Log when CCS schema changes. Bug fixes.

This is a maintenance release for ​​Redis Enterprise Software version 6.4.2.

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

• RedisJSON v2.4.7

• RedisBloom v2.4.5

• RedisGraph v2.10.12

• RedisTimeSeries v1.8.11

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

The following table provides a snapshot of supported platforms as of this Redis Enterprise Software release. See the supported platforms reference for more details about operating system compatibility.

✅ Supported – The platform is supported for this version of Redis Enterprise Software.

⚠️ Deprecated – The platform is still supported for this version of Redis Enterprise Software, but support will be removed in a future release.

❌ End of life – Platform support ended in this version of Redis Enterprise Software.

1. The server version of Ubuntu is recommended for production installations. The desktop version is only recommended for development deployments.

2. RHEL and CentOS deployments require OpenSSL 1.0.2 and firewall configuration.

3. Based on the corresponding RHEL version.

4. Docker images of Redis Enterprise Software are certified for development and testing only.

5. See the Redis Enterprise for Kubernetes documentation.

6. Ubuntu 20.04 support was added in Redis Enterprise Software 6.4.2-43.

7. A release candidate for Amazon Linux 2 support was added in Redis Enterprise Software 6.4.2-61. Official support for Amazon Linux 2 was added in Redis Enterprise Software 6.4.2-69.

8. Redis Enterprise Software 6.4.2-103 and later supports RHEL 8.8.

Downloads

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

Security

Open source Redis security fixes compatibility

As part of Redis's commitment to security, Redis Enterprise Software implements the latest security fixes available with open source 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)