USN-6731-1: YARD vulnerabilities
First published: Mon Apr 15 2024(Updated: )
It was discovered that YARD before 0.9.11 does not block relative paths with an initial ../ sequence, which allows attackers to conduct directory traversal attacks and read arbitrary files. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-17042) It was discovered that yard before 0.9.20 is affected by a path traversal vulnerability, allowing HTTP requests to access arbitrary files under certain conditions. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-1020001) Aviv Keller discovered that the "frames.html" file within the Yard Doc's generated documentation is vulnerable to Cross-Site Scripting (XSS) attacks due to inadequate sanitization of user input within the JavaScript segment of the "frames.erb" template file. (CVE-2024-27285)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/yard | <0.9.28-2ubuntu0.1 | 0.9.28-2ubuntu0.1 |
| Ubuntu | =23.10 | |
| All of | ||
| ubuntu/yard | <0.9.26-1ubuntu0.1 | 0.9.26-1ubuntu0.1 |
| Ubuntu | =22.04 | |
| All of | ||
| ubuntu/yard | <0.9.24-1+deb11u1build0.20.04.1 | 0.9.24-1+deb11u1build0.20.04.1 |
| Ubuntu | =20.04 | |
| All of | ||
| ubuntu/yard | <0.9.12-2ubuntu0.1~esm1 | 0.9.12-2ubuntu0.1~esm1 |
| Ubuntu | =18.04 | |
| All of | ||
| ubuntu/yard | <0.8.7.6+git20160220-3ubuntu0.1~esm1 | 0.8.7.6+git20160220-3ubuntu0.1~esm1 |
| Ubuntu | =16.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2017-17042
- https://ubuntu.com/security/CVE-2019-1020001
- https://ubuntu.com/security/CVE-2024-27285
- https://launchpad.net/ubuntu/+source/yard/0.9.28-2ubuntu0.1
- https://launchpad.net/ubuntu/+source/yard/0.9.26-1ubuntu0.1
- https://launchpad.net/ubuntu/+source/yard/0.9.24-1+deb11u1build0.20.04.1
- https://ubuntu.com/security/notices/USN-6731-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-6731-1?
The severity of USN-6731-1 is significant due to the potential for directory traversal attacks that allows attackers to read arbitrary files.
What versions of YARD are affected by USN-6731-1?
USN-6731-1 affects YARD versions prior to 0.9.11 on Ubuntu 16.04 LTS.
How do I fix USN-6731-1?
To fix USN-6731-1, upgrade YARD to version 0.9.28-2ubuntu0.1 or later for Ubuntu 23.10, or to the respective remedied version for earlier Ubuntu releases.
What type of vulnerability is USN-6731-1?
USN-6731-1 identifies a directory traversal vulnerability within YARD that can be exploited to access restricted files.
Is USN-6731-1 only applicable to Ubuntu 16.04 LTS?
Yes, USN-6731-1 specifically affects Ubuntu 16.04 LTS along with other versions across supported Ubuntu distributions but only impacts YARD versions prior to 0.9.11.
- agent/title
- agent/weakness
- agent/last-modified-date
- agent/references
- agent/severity
- agent/type
- agent/first-publish-date
- agent/event
- agent/description
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/usn
- source/Ubuntu
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- package-manager/ubuntu
- vendor/ubuntu
- canonical/ubuntu
- version/ubuntu/23.10
- version/ubuntu/22.04
- version/ubuntu/20.04
- version/ubuntu/18.04
- version/ubuntu/16.04