Resource exhaustion in Eclipse Mosquitto

CVE-2017-7651

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.

EPSS: 0.053 (91.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • emo@eclipse.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • emo@eclipse.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
  • emo@eclipse.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • emo@eclipse.org (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
  • emo@eclipse.org (x_refsource_CONFIRM, Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-7651?
CVE-2017-7651 is a high-severity vulnerability in Eclipse Mosquitto, classified under CWE-789. CVSS score: 7.5/10. Published 2018-04-24.
How severe is CVE-2017-7651?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-7651 known to be exploited?
5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.