Common Weakness Enumeration

CWE-789

Allowed

Memory Allocation with Excessive Size Value

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

331 vulnerabilities reference this CWE, most recent first.

CVE-2017-7651 (GCVE-0-2017-7651)

Vulnerability from cvelistv5 – Published: 2018-04-24 14:00 – Updated: 2024-08-05 16:12
VLAI
Summary
In Eclipse Mosquitto 1.4.14, a user can shutdown the Mosquitto server simply by filling the RAM memory with a lot of connections with large payload. This can be done without authentications if occur in connection phase of MQTT protocol.
Severity
No CVSS data available.
CWE
  • CWE-789 - Uncontrolled Memory Allocation
Assigner
eclipse CNA
References
Impacted products
Date Public
2018-01-12 00:00
Show details on NVD website
To clipboard 

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Mitigation
Implementation Architecture and Design

Perform adequate input validation against any value that influences the amount of memory that is allocated. Define an appropriate strategy for handling requests that exceed the limit, and consider supporting a configuration option so that the administrator can extend the amount of memory to be used if necessary.

Mitigation
Operation

Run your program using system-provided resource limits for memory. This might still cause the program to crash or exit, but the impact to the rest of the system will be minimized.

No CAPEC attack patterns related to this CWE.

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