Alerts This Week
Warning Icon 1 1,111
Alerts This Week
Warning Icon 1 1,111

Ubuntu 25.10: Valkey Critical Memory Issue USN-7893-1 CVE-2025-46817

ubuntu
Calendar Grey November 26, 2025
Dist Ubuntu Esm H88
Multiple critical issues found in Valkey reveal serious threats to Ubuntu systems. Immediate updates are advised.
Several security issues were fixed in Valkey.

Summary

Several security issues were fixed in Valkey.

Software Description:

- valkey: Persistent key-value database with network interface

Details:

Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Valkey incorrectly

handled memory when running Lua scripts. An authenticated attacker could

use this vulnerability to trigger a use-after-free condition, and

potentially achieve remote code execution on the Valkey server.

(CVE-2025-49844)

It was discovered that Valkey incorrectly handled memory when running Lua

scripts. An authenticated attacker could use this vulnerability to trigger

a integer overflow condition, and potentially achieve remote code execution

on the Valkey server. (CVE-2025-46817)

It was discovered that Valkey incorrectly handled Lua objects. An

authenticated attacker could possibly use this issue to escalate their

privileges. (CVE-2025-46818)

It was discovered that Valkey incorrectly handled memory when running Lua

scripts. An authenticated attacker could use this...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical remote code execution Ubuntu memory issue valkey

Update Instructions

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

Ubuntu 25.10
  valkey-server                   8.1.4+dfsg1-0ubuntu0.2

Ubuntu 25.04
  valkey-server                   8.0.6+dfsg1-0ubuntu0.2

Ubuntu 24.04 LTS
  valkey-server                   7.2.11+dfsg1-0ubuntu0.2

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-7893-1

CVE-2025-46817, CVE-2025-46818, CVE-2025-46819, CVE-2025-49112,

CVE-2025-49844

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7893-1

Topics%20covered

Topics Covered

security advisory critical remote code execution Ubuntu memory issue valkey

Package Information

https://launchpad.net/ubuntu/+source/valkey/8.1.4+dfsg1-0ubuntu0.2
https://launchpad.net/ubuntu/+source/valkey/8.0.6+dfsg1-0ubuntu0.2
https://launchpad.net/ubuntu/+source/valkey/7.2.11+dfsg1-0ubuntu0.2

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here