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.
Published 2018-04-24 14:29:00
Updated 2019-10-09 23:29:49
View at NVD,   CVE.org

Products affected by CVE-2017-7651

Exploit prediction scoring system (EPSS) score for CVE-2017-7651

0.31%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2017-7651

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

CWE ids for CVE-2017-7651

  • The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
    Assigned by: nvd@nist.gov (Primary)
  • 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.
    Assigned by: emo@eclipse.org (Secondary)

References for CVE-2017-7651

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