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CVE-2018-16115

N/A
Published: August 29, 2018 at 10:00 PM UTC
Updated: June 17, 2026 at 01:43 AM UTC
1 product affected across 1 vendorAkka

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Severity
N/A
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Akka· Lightbend
95%
2.5.0 ≤ v < 2.5.16
Affected range stops below 2.5.16, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://doc.akka.io/docs/akka/current/security/2018-08-29-aes-rng.html

CVSS

6.4MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-338

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