{"id":"USN-5806-3","summary":"ruby2.7 vulnerability","details":"USN-5806-1 fixed vulnerabilities in Ruby. This update fixes the problem\nfor Ubuntu 20.04 LTS.\n\nOriginal advisory details:\n\n Hiroshi Tokumaru discovered that Ruby did not properly handle certain\n user input for applications which generate HTTP responses using cgi gem.\n An attacker could possibly use this issue to maliciously modify the\n response a user would receive from a vulnerable application.\n","modified":"2026-04-27T16:18:21.903595Z","published":"2023-03-20T17:24:47Z","related":["UBUNTU-CVE-2021-33621"],"upstream":["CVE-2021-33621","UBUNTU-CVE-2021-33621"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5806-3"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-33621"}],"affected":[{"package":{"name":"ruby2.7","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby2.7@2.7.0-5ubuntu1.8?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.0-5ubuntu1.8"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby2.7","binary_version":"2.7.0-5ubuntu1.8"},{"binary_name":"ruby2.7","binary_version":"2.7.0-5ubuntu1.8"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2021-33621","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5806-3.json"}}],"schema_version":"1.7.5"}