Redis Enterprise Software release notes 7.4.2-104 (March 2024)

This is a maintenance release for ​​Redis Enterprise Software version 7.4.2.

Highlights

This version offers:

• New Cluster Manager UI enhancements for password management and identifying locked user accounts

New in this release

Enhancements

• New Cluster Manager UI enhancements:

  • You can change your password from the sign-in screen.

  • Added a “User is locked out” label to the Access Control > Users screen to help administrators identify and manage locked users.

Redis module feature sets

Redis Enterprise comes packaged with several modules. As of version 7.4.2, Redis Enterprise includes two feature sets, compatible with different Redis database versions.

Bundled Redis modules compatible with Redis database version 7.2:

• RediSearch 2.8.11

• RedisJSON 2.6.9

• RedisTimeSeries 1.10.11

• RedisBloom 2.6.11

• RedisGears 2.0.17

Bundled Redis modules compatible with Redis database versions 6.0 and 6.2:

• RediSearch 2.6.15

• RedisJSON 2.4.8

• RedisTimeSeries 1.8.12

• RedisBloom 2.4.8

• RedisGraph v2.10.15

Resolved issues

• RS112165: metrics_exporter now reports the bdb_crdt_syncer_status metric during database out-of-memory events.

• RS115577: Changed connect_timeout and read_timeout values for S3 from 30 to 60 seconds.

• RS98042: The master node now logs all replace_node errors.

• RS118147: Dynamically allocate buffer size for OSS cluster port mapping configuration.

• RS114971: Update endpoint when oss_cluster_api_preferred_ip_type changes.

• RS121248: Fixed a known issue that prevented creating Active-Active databases that use Redis version 6.0 or 6.2 with modules.

Version changes

• Removed the restriction that prevented adding nodes to a cluster with an expired cluster license, which sometimes caused issues for Kubernetes deployments.

  To avoid issues due to an expired cluster license, we recommend replacing the license before the expiration date. See Update cluster license for Cluster Manager UI instructions or use a PUT /v1/license REST API request.

Breaking changes

• #1131, #1143: RedisJSON v2.6.9 reverts JSONPath default path value from $ to . under RESP3.

Deprecations

API deprecations

• The BDB REST API object’s background_op field is deprecated. Use GET v1/actions/bdb/<bdb_uid> instead.

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 and Redis Stack modules.

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

1. The RHEL-compatible distributions CentOS, CentOS Stream, Alma, and Rocky are supported if they have full RHEL compatibility. Oracle Linux running the Red Hat Compatible Kernel (RHCK) is supported, but the Unbreakable Enterprise Kernel (UEK) is not supported.

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

3. See the Redis Enterprise for Kubernetes documentation for details about support per version and Kubernetes distribution.

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

Downloads

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

Known issues

• RS61676: Full chain certificate update fails if any certificate in the chain does not have a Common Name (CN).

• RS119958: The debuginfo script fails with the error /bin/tar: Argument list too long due to excessive RocksDB log files.

• RS122570: REST API POST /crdbs responds with a confusing error message if the cluster does not have the requested CRDB-compatible module that complies with the requested featureset.

Known limitations

Firewalld configuration fails on RHEL 9 due to file permissions

When you install Redis Enterprise Software version 7.4.2 on RHEL 9, firewalld configuration fails to add the redislabs service if /etc/firewalld/services/redislabs-clients.xml and /etc/firewalld/services/redislabs.xml are owned by redislabs instead of root.

As a workaround:

1. Change the files’ owner and group to root:

   $ chown root:root /etc/firewalld/services/redislabs-clients.xml
   $ chown root:root /etc/firewalld/services/redislabs.xml
   

2. Add the redislabs service to firewalld:

   $ systemctl daemon-reload
   $ systemctl restart firewalls
   $ /bin/firewall-cmd --add-service=redislabs
   

This limitation will be fixed in a future maintenance release.

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 7.4.2-104 supports open source Redis 7.2, 6.2, and 6.0. Below is the list of open source Redis CVEs fixed by version.

Redis 7.2.x:

• (CVE-2023-41056) In some cases, Redis may incorrectly handle resizing of memory buffers, which can result in incorrect accounting of buffer sizes and lead to heap overflow and potential remote code execution.

• (CVE-2023-41053) Redis does not correctly identify keys accessed by SORT_RO and, as a result, may grant users executing this command access to keys that are not explicitly authorized by the ACL configuration. (Redis 7.2.1)

Redis 7.0.x:

• (CVE-2023-41056) In some cases, Redis may incorrectly handle resizing of memory buffers, which can result in incorrect accounting of buffer sizes and lead to heap overflow and potential remote code execution.

• (CVE-2023-41053) Redis does not correctly identify keys accessed by SORT_RO and, as a result, may grant users executing this command access to keys that are not explicitly authorized by the ACL configuration. (Redis 7.0.13)

• (CVE-2023-36824) Extracting key names from a command and a list of arguments may, in some cases, trigger a heap overflow and result in reading random heap memory, heap corruption, and potentially remote code execution. Specifically: using COMMAND GETKEYS* and validation of key names in ACL rules. (Redis 7.0.12)

• (CVE-2023-28856) Authenticated users can use the HINCRBYFLOAT command to create an invalid hash field that will crash Redis on access. (Redis 7.0.11)

• (CVE-2023-28425) Specially crafted MSETNX command can lead to assertion and denial-of-service. (Redis 7.0.10)

• (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 7.0.9)

• (CVE-2023-22458) Integer overflow in the Redis HRANDFIELD and ZRANDMEMBER commands can lead to denial-of-service. (Redis 7.0.8)

• (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 7.0.9)

• (CVE-2022-35977) Integer overflow in the Redis SETRANGE and SORT/SORT_RO commands can drive Redis to OOM panic. (Redis 7.0.8)

• (CVE-2022-35951) Executing an XAUTOCLAIM command on a stream key in a specific state, with a specially crafted COUNT argument, may cause an integer overflow, a subsequent heap overflow, and potentially lead to remote code execution. The problem affects Redis versions 7.0.0 or newer. (Redis 7.0.5)

• (CVE-2022-31144) A specially crafted XAUTOCLAIM command on a stream key in a specific state may result in heap overflow and potentially remote code execution. The problem affects Redis versions 7.0.0 or newer. (Redis 7.0.4)

• (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 7.0.12)

• (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 7.0.0)

• (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 7.0.0)

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)