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Ubuntu 22.04 LTS: Important Redis Remote Code Execution Advisory USN-7824-3

ubuntu
Calendar Grey October 16, 2025
Dist Ubuntu Esm H88
Redis update addresses a critical security issue allowing code execution via crafted network traffic in Ubuntu 22.04 LTS.
Redis could be made to crash or run programs if it received specially crafted network traffic from an authenticated user.

Summary

Redis could be made to crash or run programs if it received

specially crafted network traffic from an authenticated user.

Software Description:

- redis: Persistent key-value database with network interface

Details:

USN-7824-1 fixed several vulnerabilities in Redis. This update provides

the corresponding update for Ubuntu 22.04 LTS.

Original advisory details:

Benny Isaacs, Nir Brakha, and Sagi Tzadik discovered that Redis 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 Redis server.

Topics%20covered

Topics Covered

security advisory critical remote code execution Ubuntu network issue redis

Update Instructions

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

Ubuntu 22.04 LTS
  redis                           5:6.0.16-1ubuntu1.1
  redis-sentinel                  5:6.0.16-1ubuntu1.1
  redis-server                    5:6.0.16-1ubuntu1.1
  redis-tools                     5:6.0.16-1ubuntu1.1

After a standard system update you need to restart Redis to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7824-3

https://ubuntu.com/security/notices/USN-7824-2

https://ubuntu.com/security/notices/USN-7824-1

CVE-2025-49844

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-7824-3

Topics%20covered

Topics Covered

security advisory critical remote code execution Ubuntu network issue redis

Package Information

https://launchpad.net/ubuntu/+source/redis/5:6.0.16-1ubuntu1.1

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