CVE-2018-1000518 — HIGH (7.5)

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Websockets Project	Websockets	4.0

Related Weaknesses (CWE)

CWE-400

References

https://github.com/aaugustin/websockets/pull/407ExploitPatchThird Party Advisory
https://github.com/aaugustin/websockets/pull/407ExploitPatchThird Party Advisory

FAQ

What is CVE-2018-1000518?

CVE-2018-1000518 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 c...

How severe is CVE-2018-1000518?

CVE-2018-1000518 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-1000518?

Check the references section above for vendor advisories and patch information. Affected products include: Websockets Project Websockets.