CVE-2018-6914

Publication date 3 April 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

Directory traversal vulnerability in the Dir.mktmpdir method in the tmpdir library in Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 might allow attackers to create arbitrary directories or files via a .. (dot dot) in the prefix argument.

Status

Package Ubuntu Release Status
ruby1.9.1 18.04 LTS bionic Not in release
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 1.9.3.484-2ubuntu1.11
ruby2.0 18.04 LTS bionic Not in release
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 2.0.0.484-1ubuntu2.9
ruby2.3 18.04 LTS bionic Not in release
17.10 artful
Fixed 2.3.3-1ubuntu1.5
16.04 LTS xenial
Fixed 2.3.1-2~16.04.9
14.04 LTS trusty Not in release
ruby2.5 18.04 LTS bionic
Fixed 2.5.1-1
17.10 artful Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

Other references