What is CVE-2018-16115?

CVE-2018-16115 is a vulnerability in Lightbend Akka 2.5.x before 2.5.16 that allows message disclosure and modification due to an RNG error.

How severe is CVE-2018-16115?

CVE-2018-16115 has a severity rating of 9.1 (Critical).

What is affected by CVE-2018-16115?

Lightbend Akka versions 2.5.0 to 2.5.15 are affected by CVE-2018-16115.

How can I fix CVE-2018-16115?

To fix CVE-2018-16115, upgrade your Lightbend Akka installation to version 2.5.16 or later.

Is there any additional information about CVE-2018-16115?

Yes, you can find additional information about CVE-2018-16115 at the following reference: [Link](https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html)

Vulnerability/
CVE-2018-16115

critical

9.1

CWE

338

29/8/2018

5/8/2024

CVE-2018-16115: Weak RNG

First published: Wed Aug 29 2018(Updated: )

Lightbend Akka 2.5.x before 2.5.16 allows message disclosure and modification because of an RNG error. A random number generator is used in Akka Remoting for TLS (both classic and Artery Remoting). Akka allows configuration of custom random number generators. For historical reasons, Akka included the AES128CounterSecureRNG and AES256CounterSecureRNG random number generators. The implementations had a bug that caused the generated numbers to be repeated after only a few bytes. The custom RNG implementations were not configured by default but examples in the documentation showed (and therefore implicitly recommended) using the custom ones. This can be used by an attacker to compromise the communication if these random number generators are enabled in configuration. It would be possible to eavesdrop, replay, or modify the messages sent with Akka Remoting/Cluster.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Lightbend Akka	>=2.5.0<2.5.16

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Reference Links

https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html

Frequently Asked Questions

What is CVE-2018-16115?
CVE-2018-16115 is a vulnerability in Lightbend Akka 2.5.x before 2.5.16 that allows message disclosure and modification due to an RNG error.
How severe is CVE-2018-16115?
CVE-2018-16115 has a severity rating of 9.1 (Critical).
What is affected by CVE-2018-16115?
Lightbend Akka versions 2.5.0 to 2.5.15 are affected by CVE-2018-16115.
How can I fix CVE-2018-16115?
To fix CVE-2018-16115, upgrade your Lightbend Akka installation to version 2.5.16 or later.
Is there any additional information about CVE-2018-16115?
Yes, you can find additional information about CVE-2018-16115 at the following reference: [Link](https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html)

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version/lightbend akka/2.5.0

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