What is the vulnerability ID for this issue?

The vulnerability ID for this issue is CVE-2018-1000518.

What is the severity of CVE-2018-1000518?

The severity of CVE-2018-1000518 is high with a severity value of 7.5.

What is the affected software?

The affected software is the Python websockets library version 4 and Websockets Project Websockets 4.0.

How can this vulnerability be exploited?

This vulnerability can be exploited to cause a Denial of Service by memory exhaustion.

Is there a fix available for this vulnerability?

Yes, a fix is available with the remedy version 5.0 for the Python websockets library.

Vulnerability/
CVE-2018-1000518

high

7.5

CWE

400

26/6/2018

17/9/2018

19/11/2024

CVE-2018-1000518

First published: Tue Jun 26 2018(Updated: )

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.

Credit: cve@mitre.org cve@mitre.org

Affected Software	Affected Version	How to fix
pip/websockets	>=4.0<5.0	5.0
Websockets Project Websockets Python	=4.0

Remedy

https://github.com/aaugustin/websockets/pull/407

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Reference Links

Frequently Asked Questions

What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2018-1000518.
What is the severity of CVE-2018-1000518?
The severity of CVE-2018-1000518 is high with a severity value of 7.5.
What is the affected software?
The affected software is the Python websockets library version 4 and Websockets Project Websockets 4.0.
How can this vulnerability be exploited?
This vulnerability can be exploited to cause a Denial of Service by memory exhaustion.
Is there a fix available for this vulnerability?
Yes, a fix is available with the remedy version 5.0 for the Python websockets library.

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alias/CVE-2018-1000518
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collector/github-advisory-latest
source/GitHub
agent/software-canonical-lookup
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collector/nvd-cve
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package-manager/pip
vendor/websockets project
canonical/websockets project websockets python
version/websockets project websockets python/4.0

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