CVE-2020-8161

Publication date 2 July 2020

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A directory traversal vulnerability exists in rack < 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.

From the Ubuntu Security Team

It was discovered that Rack incorrectly handled certain paths. An attacker could possibly use this issue to obtain sensitive information.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby-rack	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Fixed 2.0.7-2ubuntu0.1
	19.10 eoan	Ignored end of life
	18.04 LTS bionic	Fixed 1.6.4-4ubuntu0.2
	16.04 LTS xenial	Fixed 1.6.4-3ubuntu0.2
	14.04 LTS trusty	Fixed 1.5.2-3+deb8u3 Ubuntu Pro

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby-rack	Upstream: dddb7ad Upstream: e7ba1b0

Severity score breakdown

Parameter	Value
Base score	8.6 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N