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Debian LTS Advisory DLA-3885-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
September 10, 2024                            https://wiki.debian.org/LTS
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Package        : redis
Version        : 5:6.0.16-1+deb11u3
CVE IDs        : CVE-2023-45145 CVE-2023-28856 CVE-2023-25155 CVE-2022-36021 CVE-2022-24834
Debian Bugs    : 1032279 1034613 1054225

It was discovered that there were a number of issues in Redis, a popular
key-value database:

 * CVE-2023-45145: On startup, Redis began listening on a Unix
   socket before adjusting its permissions to the user-provided
   configuration. If a permissive umask(2) was used, this created a
   race condition that enabled, during a short period of time,
   another process to establish an otherwise unauthorized connection.

 * CVE-2023-28856: Authenticated users could have used the
   HINCRBYFLOAT command to create an invalid hash field that would
   have crashed the Redis server on access.

 * CVE-2023-25155: 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 process.

 * CVE-2022-36021: 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.

 * CVE-2022-24834: A specially-crafted Lua script executing in Redis
   could have triggered a heap overflow in the cjson and cmsgpack
   libraries and result in heap corruption and potentially remote
   code execution.


For Debian 11 bullseye, these problems have been fixed in version
5:6.0.16-1+deb11u3.

We recommend that you upgrade your redis packages.

For the detailed security status of redis please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/redis

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS