5.8med

CVE-2023-0809

In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.

Published 3 y ago · modified 4 mo ago · JSON

CVSS
5.8
v3.1 · CNA
CISA KEV
No
not known exploited
EPSS
0.7%
percentile 54%
Public exploits
0
none known

Summary

In Mosquitto before 2.0.16, excessive memory is allocated based on malicious initial packets that are not CONNECT packets.

CISA SSVC assessment

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction (EPSS)

0.71% probability of exploitation in the next 30 days, higher than 54% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.15.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
CNA3.15.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
NVD3.15.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

  • Eclipse Mosquitto

Classification

Weakness
  • CWE-789 Memory Allocation with Excessive Size Value
  • CWE-770 Allocation of Resources Without Limits or Throttling

References

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.