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CVE-2018-1000518

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Date: June 26, 2018

aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5.

Language: Python

Severity Score

Related Resources (6)

https://github.com/aaugustin/websockets
https://nvd.nist.gov/vuln/detail/CVE-2018-1000518
https://github.com/pypa/advisory-database/tree/main/vulns/websockets/PYSEC-2018-79.yaml
https://github.com/advisories/GHSA-6g87-ff9q-v847
https://github.com/aaugustin/websockets/pull/407
https://www.mend.io/vulnerability-database/CVE-2018-1000518

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Top Fix

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Upgrade to version websockets - 5.0;websockets - 5.0

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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): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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