[SECURITY] [DLA 4240-1] redis security update

- -------------------------------------------------------------------------
Debian LTS Advisory DLA-4240-1 debian-lts@lists.debian.org
https://www.debian.org/lts/security/ Chris Lamb
July 12, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : redis
Version : 5:6.0.16-1+deb11u7
CVE IDs : CVE-2025-32023 CVE-2025-48367
Debian Bugs : 1108975 1108981

Two issues were discovered in Redis, the key-value database:

* CVE-2025-32023: An authenticated user may have used a
specially-crafted string to trigger a stack/heap out-of-bounds
write during hyperloglog operations, potentially leading to a
remote code execution vulnerability. Installations that used Redis'
ACL system to restrict hyperloglog HLL commands are unaffected by
this issue.

* CVE-2025-48367: An unauthenticated connection could have caused
repeated IP protocol errors, leading to client starvation and
ultimately become a Denial of Service (DoS) attack.

For Debian 11 bullseye, these problems have been fixed in version
5:6.0.16-1+deb11u7.

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