CVE-2018-7158

Description

The `'path'` module in the Node.js 4.x release line contains a potential regular expression denial of service (ReDoS) vector. The code in question was replaced in Node.js 6.x and later so this vulnerability only impacts all versions of Node.js 4.x. The regular expression, `splitPathRe`, used within the `'path'` module for the various path parsing functions, including `path.dirname()`, `path.extname()` and `path.parse()` was structured in such a way as to allow an attacker to craft a string, that when passed through one of these functions, could take a significant amount of time to evaluate, potentially leading to a full denial of service.

How to fix CVE-2018-7158

To remediate CVE-2018-7158, upgrade the affected package to a fixed version below.

• —upgrade to 8.11.0-r0 or later
• —upgrade to 6.0.0~dfsg-1 or later

Is CVE-2018-7158 being exploited?

Low — EPSS is 1.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 8.11.0-r0
• from 0, < 6.0.0~dfsg-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2018-7158
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2018-7158