A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module versions < 3.5.1, 4.0.0 - 4.1.3, 5.0.0 - 5.6.1, 6.0.0 - 6.1.2 for decoding.
Published 2019-05-06 17:29:01
Updated 2021-11-03 18:20:41
Source HackerOne
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2019-5432

0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 40 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-5432

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:3.1/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-2019-5432

  • The product reads data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)
  • The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.
    Assigned by: support@hackerone.com (Secondary)

References for CVE-2019-5432

  • https://hackerone.com/reports/541354
    #541354 A specifically malformed MQTT Subscribe packet crashes MQTT Brokers using the mqtt-packet module for decoding
    Issue Tracking;Exploit;Patch;Third Party Advisory

Products affected by CVE-2019-5432

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