CVE-2019-18658 Information

Description

In Helm 2.x before 2.15.2 commands that deal with loading a chart as a directory or packaging a chart provide an opportunity for a maliciously designed chart to include sensitive content such as /etc/passwd or to execute a denial of service (DoS) via a special file such as /dev/urandom via symlinks. No version of Tiller is known to be impacted. This is a client-only issue.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://helm.sh/blog/2019-10-30-helm-symlink-security-notice/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8