PT-2020-16801

CVE-2020-27813

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Published

2020-12-02

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Updated

2023-07-06

Description by

CVSS 3.1
7.5
High
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions HTTP Server (affected versions not specified)
Description The issue is related to an integer overflow vulnerability in the length of websocket frames received via a websocket connection. This flaw can be exploited by an attacker to cause a denial of service attack on an HTTP Server that allows websocket connections. An attacker can craft malicious WebSocket frames that cause an integer overflow in a variable which tracks the number of bytes remaining, potentially causing the server or client to get stuck in a loop attempting to read frames.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Impacts
Researchers
Vendors
Affected products
Related identifiers
GHSA-3XH2-74W9-5VXM
GHSA-JF24-P9P9-4RJH
DLA-2520-1
DLA-3420-1
GO-2020-0019
RHSA-2021:0833
USN-6208-1
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