{"id":"UBUNTU-CVE-2021-21305","details":"CarrierWave is an open-source RubyGem which provides a simple and flexible way to upload files from Ruby applications. In CarrierWave before versions 1.3.2 and 2.1.1, there is a code injection vulnerability. The \"#manipulate!\" method inappropriately evals the content of mutation option(:read/:write), allowing attackers to craft a string that can be executed as a Ruby code. If an application developer supplies untrusted inputs to the option, it will lead to remote code execution(RCE). This is fixed in versions 1.3.2 and 2.1.1.","modified":"2026-01-30T00:40:34.767316Z","published":"2021-02-08T20:15:00Z","related":["USN-7497-1"],"upstream":["CVE-2021-21305"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-21305"},{"type":"REPORT","url":"https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08"},{"type":"REPORT","url":"https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#211---2021-02-08"},{"type":"REPORT","url":"https://github.com/carrierwaveuploader/carrierwave/commit/387116f5c72efa42bc3938d946b4c8d2f22181b7"},{"type":"REPORT","url":"https://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-cf3w-g86h-35x4"},{"type":"REPORT","url":"https://rubygems.org/gems/carrierwave"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-21305"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7497-1"}],"affected":[{"package":{"name":"ruby-carrierwave","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-carrierwave@0.10.0+gh-2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.0+gh-1","0.10.0+gh-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.10.0+gh-2","binary_name":"ruby-carrierwave"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21305.json"}},{"package":{"name":"ruby-carrierwave","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-carrierwave@1.2.2-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2-1ubuntu0.1~esm1"}]}],"versions":["0.10.0+gh-4","1.1.0-3","1.2.2-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"ruby-carrierwave","binary_version":"1.2.2-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21305.json"}},{"package":{"name":"ruby-carrierwave","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/ruby-carrierwave@1.3.1-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.1-2ubuntu0.1~esm1"}]}],"versions":["1.3.1-2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"ruby-carrierwave","binary_version":"1.3.1-2ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21305.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}