{"id":"UBUNTU-CVE-2024-27280","details":"A buffer-overread issue was discovered in StringIO 3.0.1, as distributed in Ruby 3.0.x through 3.0.6 and 3.1.x through 3.1.4. The ungetbyte and ungetc methods on a StringIO can read past the end of a string, and a subsequent call to StringIO.gets may return the memory value. 3.0.3 is the main fixed version; however, for Ruby 3.0 users, a fixed version is stringio 3.0.1.1, and for Ruby 3.1 users, a fixed version is stringio 3.0.1.2.","modified":"2026-07-16T20:40:32.231249834Z","published":"2024-05-14T15:11:00Z","related":["USN-6853-1","USN-7734-1"],"upstream":["CVE-2024-27280"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-27280"},{"type":"REPORT","url":"https://www.ruby-lang.org/en/news/2024/03/21/buffer-overread-cve-2024-27280/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-27280"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6853-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7734-1"}],"affected":[{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","2.3.1-2~ubuntu16.04.15","2.3.1-2~ubuntu16.04.16","2.3.1-2~ubuntu16.04.16+esm1","2.3.1-2~ubuntu16.04.16+esm2","2.3.1-2~ubuntu16.04.16+esm3","2.3.1-2~ubuntu16.04.16+esm4","2.3.1-2~ubuntu16.04.16+esm5","2.3.1-2~ubuntu16.04.16+esm6","2.3.1-2~ubuntu16.04.16+esm7","2.3.1-2~ubuntu16.04.16+esm8","2.3.1-2~ubuntu16.04.16+esm9","2.3.1-2~ubuntu16.04.16+esm10","2.3.1-2~ubuntu16.04.16+esm11","2.3.1-2~ubuntu16.04.16+esm12","2.3.1-2~ubuntu16.04.16+esm14","2.3.1-2~ubuntu16.04.16+esm15"],"ecosystem_specific":{"binaries":[{"binary_name":"libruby2.3","binary_version":"2.3.1-2~ubuntu16.04.16+esm15"},{"binary_version":"2.3.1-2~ubuntu16.04.16+esm15","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~ubuntu16.04.16+esm15","binary_name":"ruby2.3-tcltk"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27280.json"}},{"package":{"name":"ruby2.5","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ruby2.5?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-1ubuntu1.16+esm5"}]}],"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","2.5.1-1ubuntu1.8","2.5.1-1ubuntu1.9","2.5.1-1ubuntu1.10","2.5.1-1ubuntu1.11","2.5.1-1ubuntu1.12","2.5.1-1ubuntu1.13","2.5.1-1ubuntu1.14","2.5.1-1ubuntu1.15","2.5.1-1ubuntu1.16","2.5.1-1ubuntu1.16+esm1","2.5.1-1ubuntu1.16+esm3","2.5.1-1ubuntu1.16+esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"libruby2.5","binary_version":"2.5.1-1ubuntu1.16+esm5"},{"binary_name":"ruby2.5","binary_version":"2.5.1-1ubuntu1.16+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27280.json"}},{"package":{"name":"ruby2.7","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby2.7?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0-5ubuntu1.14"}]}],"versions":["2.7.0-1","2.7.0-2","2.7.0-3","2.7.0-4","2.7.0-4ubuntu1","2.7.0-5ubuntu1","2.7.0-5ubuntu1.1","2.7.0-5ubuntu1.2","2.7.0-5ubuntu1.3","2.7.0-5ubuntu1.4","2.7.0-5ubuntu1.5","2.7.0-5ubuntu1.6","2.7.0-5ubuntu1.7","2.7.0-5ubuntu1.8","2.7.0-5ubuntu1.9","2.7.0-5ubuntu1.10","2.7.0-5ubuntu1.11","2.7.0-5ubuntu1.12","2.7.0-5ubuntu1.13"],"ecosystem_specific":{"binaries":[{"binary_version":"2.7.0-5ubuntu1.14","binary_name":"libruby2.7"},{"binary_name":"ruby2.7","binary_version":"2.7.0-5ubuntu1.14"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27280.json"}},{"package":{"name":"ruby3.0","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/ruby3.0?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-7ubuntu2.7"}]}],"versions":["3.0.2-5ubuntu1","3.0.2-7","3.0.2-7ubuntu2","3.0.2-7ubuntu2.1","3.0.2-7ubuntu2.2","3.0.2-7ubuntu2.3","3.0.2-7ubuntu2.4","3.0.2-7ubuntu2.5","3.0.2-7ubuntu2.6"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.2-7ubuntu2.7","binary_name":"libruby3.0"},{"binary_name":"ruby3.0","binary_version":"3.0.2-7ubuntu2.7"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-27280.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:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}