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-2022-25912 Vulnerability in maven package org.webjars.npm:simple-git
CVE-2021-39235 Vulnerability in maven package org.apache.ozone:ozone-main
CVE-2018-16330 Vulnerability in maven package org.webjars.npm:editor.md
CVE-2017-16097 Vulnerability in npm package tiny-http
CVE-2021-33562 Vulnerability in maven package com.shopizer:shopizer