{"id":"UBUNTU-CVE-2017-0903","details":"RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.","modified":"2026-02-04T02:43:38.453129Z","published":"2017-10-11T00:00:00Z","related":["USN-3553-1","USN-3685-1","USN-3685-2"],"upstream":["CVE-2017-0903"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-0903"},{"type":"REPORT","url":"http://blog.rubygems.org/2017/10/09/2.6.14-released.html"},{"type":"REPORT","url":"http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html"},{"type":"REPORT","url":"https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49"},{"type":"REPORT","url":"https://hackerone.com/reports/274990"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3553-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3685-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3685-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-0903"}],"affected":[{"package":{"name":"ruby2.0","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby2.0@2.0.0.484-1ubuntu2.10?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0.484-1ubuntu2.10"}]}],"versions":["2.0.0.299-2","2.0.0.343-1","2.0.0.343-1ubuntu1","2.0.0.353-1","2.0.0.353-1ubuntu1","2.0.0.484-1ubuntu1","2.0.0.484-1ubuntu2","2.0.0.484-1ubuntu2.1","2.0.0.484-1ubuntu2.2","2.0.0.484-1ubuntu2.4","2.0.0.484-1ubuntu2.5","2.0.0.484-1ubuntu2.6","2.0.0.484-1ubuntu2.8","2.0.0.484-1ubuntu2.9"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.0.484-1ubuntu2.10","binary_name":"libruby2.0"},{"binary_version":"2.0.0.484-1ubuntu2.10","binary_name":"ruby2.0"},{"binary_version":"2.0.0.484-1ubuntu2.10","binary_name":"ruby2.0-dev"},{"binary_version":"2.0.0.484-1ubuntu2.10","binary_name":"ruby2.0-tcltk"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0903.json"}},{"package":{"name":"jruby","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/jruby@1.5.6-9+deb8u2build0.14.04.1~esm2?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.6-5ubuntu1","1.5.6-6","1.5.6-7","1.5.6-9+deb8u2build0.14.04.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.6-9+deb8u2build0.14.04.1~esm2","binary_name":"jruby"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0903.json"}},{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.6?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~16.04.6"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-2~16.04.6","binary_name":"libruby2.3"},{"binary_version":"2.3.1-2~16.04.6","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~16.04.6","binary_name":"ruby2.3-dev"},{"binary_version":"2.3.1-2~16.04.6","binary_name":"ruby2.3-tcltk"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0903.json"}},{"package":{"name":"jruby","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/jruby@1.7.22-1ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.7.21-2ubuntu4","1.7.22-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7.22-1ubuntu1","binary_name":"jruby"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0903.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}