What is the vulnerability ID for this advisory?

The vulnerability ID for this advisory is USN-4561-2.

What is the severity of USN-4561-2?

The severity of USN-4561-2 is not provided in the advisory. Please refer to the provided references for more information.

What software is affected by USN-4561-2?

The affected software by USN-4561-2 is Ruby Rack versions 2.1.1-5ubuntu0.1, 2.0.7-2ubuntu0.1, and 1.6.4-3ubuntu0.2 on Ubuntu 16.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10.

How can I fix the vulnerability in Ruby Rack?

To fix the vulnerability in Ruby Rack, update the package to the recommended version mentioned in the advisory.

Where can I find more information about the vulnerabilities fixed by USN-4561-2?

You can find more information about the vulnerabilities fixed by USN-4561-2 in the provided references: [CVE-2020-8161](https://ubuntu.com/security/CVE-2020-8161) and [CVE-2020-8184](https://ubuntu.com/security/CVE-2020-8184).

Vulnerability/
USN-4561-2

6/4/2021

USN-4561-2: Rack vulnerabilities

First published: Tue Apr 06 2021(Updated: )

USN-4561-1 fixed vulnerabilities in Rack. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 20.04 LTS and Ubuntu 20.10. Original advisory details: It was discovered that Rack incorrectly handled certain paths. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-8161) It was discovered that Rack incorrectly validated cookies. An attacker could possibly use this issue to forge a secure cookie. (CVE-2020-8184)

Affected Software	Affected Version	How to fix
All of
ubuntu/ruby-rack	<2.1.1-5ubuntu0.1	2.1.1-5ubuntu0.1
Ubuntu Ubuntu	=20.10
All of
ubuntu/ruby-rack	<2.0.7-2ubuntu0.1	2.0.7-2ubuntu0.1
Ubuntu Ubuntu	=20.04
All of
ubuntu/ruby-rack	<1.6.4-3ubuntu0.2	1.6.4-3ubuntu0.2
Ubuntu Ubuntu	=16.04

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Frequently Asked Questions

What is the vulnerability ID for this advisory?
The vulnerability ID for this advisory is USN-4561-2.
What is the severity of USN-4561-2?
The severity of USN-4561-2 is not provided in the advisory. Please refer to the provided references for more information.
What software is affected by USN-4561-2?
The affected software by USN-4561-2 is Ruby Rack versions 2.1.1-5ubuntu0.1, 2.0.7-2ubuntu0.1, and 1.6.4-3ubuntu0.2 on Ubuntu 16.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10.
How can I fix the vulnerability in Ruby Rack?
To fix the vulnerability in Ruby Rack, update the package to the recommended version mentioned in the advisory.
Where can I find more information about the vulnerabilities fixed by USN-4561-2?
You can find more information about the vulnerabilities fixed by USN-4561-2 in the provided references: [CVE-2020-8161](https://ubuntu.com/security/CVE-2020-8161) and [CVE-2020-8184](https://ubuntu.com/security/CVE-2020-8184).

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agent/last-modified-date
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source/Ubuntu
anchor-related/USN-4561-1
anchor-related/USN-5253-1
agent/software-canonical-lookup
agent/title
agent/softwarecombine
agent/tags
agent/description
agent/event
agent/trending
package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu ubuntu
version/ubuntu ubuntu/20.10
version/ubuntu ubuntu/20.04
version/ubuntu ubuntu/16.04

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