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CVE-2023-0809

Good to know:

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Date: October 2, 2023

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

Language: C

Severity Score

Related Resources (6)

https://nvd.nist.gov/vuln/detail/CVE-2023-0809
https://mosquitto.org/blog/2023/08/version-2-0-16-released/
https://security.gentoo.org/glsa/202401-09
https://security-tracker.debian.org/tracker/CVE-2023-0809
https://github.com/eclipse/mosquitto/commit/00b24e0eb0686e9a76feb71fdaee650cb7e612fa
https://www.mend.io/vulnerability-database/CVE-2023-0809

Severity Score

Weakness Type (CWE)

Memory Allocation with Excessive Size Value

CWE-789

Allocation of Resources Without Limits or Throttling

CWE-770

Top Fix

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Upgrade to version v2.0.16

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

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