{"id":"UBUNTU-CVE-2020-10663","details":"The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.","modified":"2026-04-22T13:57:45.475889Z","published":"2020-04-28T21:15:00Z","related":["USN-4882-1"],"upstream":["CVE-2020-10663"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-10663"},{"type":"REPORT","url":"https://www.ruby-lang.org/en/news/2020/03/19/json-dos-cve-2020-10663/"},{"type":"REPORT","url":"https://hackerone.com/reports/706934"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4882-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-10663"}],"affected":[{"package":{"name":"ruby-json","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby-json@1.8.0-1build1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.0-1","1.8.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-json","binary_version":"1.8.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10663.json"}},{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.15?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~ubuntu16.04.15"}]}],"versions":["2.3.0-1","2.3.0-2","2.3.0-4ubuntu2","2.3.0-4ubuntu3","2.3.0-5ubuntu1","2.3.1-2~16.04","2.3.1-2~16.04.2","2.3.1-2~16.04.4","2.3.1-2~16.04.5","2.3.1-2~16.04.6","2.3.1-2~16.04.7","2.3.1-2~16.04.9","2.3.1-2~16.04.10","2.3.1-2~16.04.11","2.3.1-2~16.04.12","2.3.1-2~ubuntu16.04.13","2.3.1-2~ubuntu16.04.14"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby2.3","binary_version":"2.3.1-2~ubuntu16.04.15"},{"binary_name":"ruby2.3","binary_version":"2.3.1-2~ubuntu16.04.15"},{"binary_name":"ruby2.3-tcltk","binary_version":"2.3.1-2~ubuntu16.04.15"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10663.json"}},{"package":{"name":"ruby-json","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-json@1.8.3-1build4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.3-1build1","1.8.3-1build2","1.8.3-1build4"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-json","binary_version":"1.8.3-1build4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10663.json"}},{"package":{"name":"ruby2.5","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.8?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-1ubuntu1.8"}]}],"versions":["2.5.0~preview1-1ubuntu2","2.5.0-4ubuntu1","2.5.0-4ubuntu4","2.5.0-5ubuntu1","2.5.0-6ubuntu1","2.5.1-1ubuntu1","2.5.1-1ubuntu1.1","2.5.1-1ubuntu1.2","2.5.1-1ubuntu1.4","2.5.1-1ubuntu1.5","2.5.1-1ubuntu1.6","2.5.1-1ubuntu1.7"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby2.5","binary_version":"2.5.1-1ubuntu1.8"},{"binary_name":"ruby2.5","binary_version":"2.5.1-1ubuntu1.8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10663.json"}},{"package":{"name":"ruby-json","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-json@2.1.0+dfsg-2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.0+dfsg-1","2.1.0+dfsg-1ubuntu2","2.1.0+dfsg-1ubuntu3","2.1.0+dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-json","binary_version":"2.1.0+dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-10663.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}