CVE-2023-5632

Summary

In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6

Affected Software

Weaknesses

• CWE-834: CWE-834 Excessive Iteration

ADP Enrichment

CVE Program Container

Additional References

• https://github.com/eclipse/mosquitto/pull/2053
• https://github.com/eclipse/mosquitto/commit/18bad1ff32435e523d7507e9b2ce0010124a8f2d

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/eclipse/mosquitto/pull/2053
• https://github.com/eclipse/mosquitto/commit/18bad1ff32435e523d7507e9b2ce0010124a8f2d

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