Description
In Yarn before 1.21.1, the package install functionality can be abused to generate arbitrary symlinks on the host filesystem by using specially crafted "bin" keys. Existing files could be overwritten depending on the current user permission set.
Remediation
References
https://access.redhat.com/errata/RHSA-2020:0475
https://blog.daniel-ruf.de/critical-design-flaw-npm-pnpm-yarn/
https://github.com/yarnpkg/yarn/commit/039bafd74b7b1a88a53a54f8fa6fa872615e90e7
https://github.com/yarnpkg/yarn/issues/7761#issuecomment-565493023
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3HIZW4NZVV5QY5WWGW2JRP3FHYKZ6ZJ5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITY5BC63CCC647DFNUQRQ5AJDKUKUNBI/
https://snyk.io/vuln/SNYK-JS-YARN-537806%2C
Related Vulnerabilities
CVE-2020-36184 Vulnerability in maven package com.fasterxml.jackson.core:jackson-databind
CVE-2020-20913 Vulnerability in maven package net.mingsoft:ms-mcms
CVE-2021-29484 Vulnerability in npm package ghost
CVE-2022-24999 Vulnerability in npm package qs
CVE-2022-28355 Vulnerability in maven package org.scala-js:scalajs-library_2.11