- Vulnerability/
- USN-4502-1
USN-4502-1: websocket-extensions vulnerability
First published: Wed Sep 16 2020(Updated: )
It was discovered that websocket-extensions does not properly parse special headers. A remote attacker could use this issue to cause regex backtracking, resulting in a denial of service. (CVE-2020-7663)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/ruby-websocket-extensions | <0.1.2-1+deb9u1build0.20.04.1 | 0.1.2-1+deb9u1build0.20.04.1 |
| =20.04 | ||
| All of | ||
| ubuntu/ruby-websocket-extensions | <0.1.2-1+deb9u1build0.18.04.1 | 0.1.2-1+deb9u1build0.18.04.1 |
| =18.04 | ||
| All of | ||
| ubuntu/ruby-websocket-extensions | <0.1.2-1+deb9u1build0.16.04.1 | 0.1.2-1+deb9u1build0.16.04.1 |
| =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2020-7663
- https://launchpad.net/ubuntu/+source/ruby-websocket-extensions/0.1.2-1+deb9u1build0.20.04.1
- https://launchpad.net/ubuntu/+source/ruby-websocket-extensions/0.1.2-1+deb9u1build0.18.04.1
- https://launchpad.net/ubuntu/+source/ruby-websocket-extensions/0.1.2-1+deb9u1build0.16.04.1
- https://ubuntu.com/security/notices/USN-4502-1 (Advisory)
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-7663.
What is the affected software for this vulnerability?
The affected software is ruby-websocket-extensions.
What is the severity of this vulnerability?
The severity of this vulnerability is not specified.
How can I fix the vulnerability?
To fix the vulnerability, you should update ruby-websocket-extensions to version 0.1.2-1+deb9u1build0.20.04.1 for Ubuntu 20.04, version 0.1.2-1+deb9u1build0.18.04.1 for Ubuntu 18.04, or version 0.1.2-1+deb9u1build0.16.04.1 for Ubuntu 16.04.
Where can I find more information about this vulnerability?
You can find more information about this vulnerability on the Ubuntu Security website at https://ubuntu.com/security/CVE-2020-7663.
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