CVE-2018-6914

HIGH

Ruby Directory Traversal via Dir.mktmpdir Prefix Argument

Title source: llm

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.

References (17)

Core 17

Core References

Third Party Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/3626-1/

Patch, Release Notes x_refsource_confirm

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-5-1-released/

Third Party Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2018:3729

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1042004

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/103686

Third Party Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2018:3730

Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html

Third Party Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2018:3731

Patch, Release Notes x_refsource_confirm

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-3-7-released/

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html

Vendor Advisory x_refsource_confirm

https://www.ruby-lang.org/en/news/2018/03/28/unintentional-file-and-directory-creation-with-directory-traversal-cve-2018-6914/

Patch, Release Notes x_refsource_confirm

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-4-4-released/

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2018/dsa-4259

Patch, Release Notes x_refsource_confirm

https://www.ruby-lang.org/en/news/2018/03/28/ruby-2-2-10-released/

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2018/04/msg00024.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html

Vendor Advisory vendor-advisory x_refsource_redhat

https://access.redhat.com/errata/RHSA-2019:2028

Scores

CVSS v3 7.5

EPSS 0.0237

EPSS Percentile 85.2%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE

CWE-22

Status published

Products (13)

canonical/ubuntu_linux 14.04

canonical/ubuntu_linux 16.04

canonical/ubuntu_linux 17.10

debian/debian_linux 7.0

debian/debian_linux 8.0

debian/debian_linux 9.0

redhat/enterprise_linux 6.0

redhat/enterprise_linux 7.0

redhat/enterprise_linux 7.4

redhat/enterprise_linux 7.5

... and 3 more

Published Apr 03, 2018

Tracked Since Feb 18, 2026