{"id":"UBUNTU-CVE-2017-0898","details":"Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.","modified":"2026-04-22T11:53:02.051762Z","published":"2017-09-15T00:00:00Z","related":["USN-3439-1","USN-3685-1"],"upstream":["CVE-2017-0898"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-0898"},{"type":"REPORT","url":"https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/"},{"type":"REPORT","url":"http://www.securitytracker.com/id/1039363"},{"type":"REPORT","url":"https://hackerone.com/reports/212241"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3439-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3685-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-0898"}],"affected":[{"package":{"name":"ruby1.9.1","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby1.9.1@1.9.3.484-2ubuntu1.5?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.3.484-2ubuntu1.5"}]}],"versions":["1.9.3.194-8.1ubuntu2","1.9.3.448-1ubuntu1","1.9.3.448-1ubuntu2","1.9.3.484-1ubuntu1","1.9.3.484-1ubuntu2","1.9.3.484-2ubuntu1","1.9.3.484-2ubuntu1.1","1.9.3.484-2ubuntu1.2","1.9.3.484-2ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"libruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"libtcltk-ruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"ri1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"ruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"ruby1.9.1-examples"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"ruby1.9.1-full"},{"binary_version":"1.9.3.484-2ubuntu1.5","binary_name":"ruby1.9.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0898.json"}},{"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-tcltk"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-0898.json"}},{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.10?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~16.04.10"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-2~16.04.10","binary_name":"libruby2.3"},{"binary_version":"2.3.1-2~16.04.10","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~16.04.10","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-2017-0898.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}