NGINX Plus MQTT Pre-Read Module Memory Leak
CVE-2024-39792 Published on August 14, 2024
NGINX Plus MQTT vulnerability
When the NGINX Plus is configured to use the MQTT pre-read module, undisclosed requests can cause an increase in memory resource utilization. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Vulnerability Analysis
CVE-2024-39792 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Dangling pointer Vulnerability?
The program dereferences a pointer that contains a location for memory that was previously valid, but is no longer valid. When a program releases memory, but it maintains a pointer to that memory, then the memory might be re-allocated at a later time. If the original pointer is accessed to read or write data, then this could cause the program to read or modify data that is in use by a different function or process. Depending on how the newly-allocated memory is used, this could lead to a denial of service, information exposure, or code execution.
CVE-2024-39792 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2024-39792
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Affected Versions
F5 NGINX Plus:- Version R30 and below * is affected.
- Version r30 and below r32_p1 is affected.
- Version r30 and below r31_p3 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.