[USN-8106-1] Valkey vulnerabilities

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-8106-1
March 18, 2026

valkey vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.10
- Ubuntu 24.04 LTS

Summary:

Several security issues were fixed in Valkey.

Software Description:
- valkey: Persistent key-value database with network interface

Details:

It was discovered that Valkey incorrectly handled errors for lua scripts.
An attacker could possibly use this issue to inject arbitrary information
into the response stream for other clients. (CVE-2025-67733)

It was discovered that Valkey incorrectly handled malformed cluster bus
messages. A remote attacker could possibly use this issue to cause Valkey
to crash, resulting in a denial of service. (CVE-2026-21863)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.10
  valkey-server                   8.1.6+dfsg1-0ubuntu0.1

Ubuntu 24.04 LTS
  valkey-server                   7.2.12+dfsg1-0ubuntu0.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
  https://ubuntu.com/security/notices/USN-8106-1
  CVE-2025-67733, CVE-2026-21863

Package Information:
  https://launchpad.net/ubuntu/+source/valkey/8.1.6+dfsg1-0ubuntu0.1
  https://launchpad.net/ubuntu/+source/valkey/7.2.12+dfsg1-0ubuntu0.1
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