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CVE-2023-26151

Good to know:

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Date: October 3, 2023

Versions of the package asyncua before 0.9.96 are vulnerable to Denial of Service (DoS) such that an attacker can send a malformed packet and as a result, the server will enter into an infinite loop and consume excessive memory.

Language: Python

Severity Score

Related Resources (9)

https://github.com/FreeOpcUa/opcua-asyncio/commit/f6603daa34a93a658f0e176cb0b9ee5a6643b262
https://gist.github.com/artfire52/1540b234350795e0ecb4d672608dbec8
https://github.com/FreeOpcUa/opcua-asyncio/pull/1039
https://github.com/FreeOpcUa/opcua-asyncio
https://github.com/pypa/advisory-database/tree/main/vulns/asyncua/PYSEC-2023-190.yaml
https://github.com/FreeOpcUa/opcua-asyncio/issues/1013
https://nvd.nist.gov/vuln/detail/CVE-2023-26151
https://github.com/FreeOpcUa/opcua-asyncio/releases/tag/v0.9.96
https://www.mend.io/vulnerability-database/CVE-2023-26151

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

Top Fix

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Upgrade Version

Upgrade to version asyncua - 0.9.96

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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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