{"id":"USN-7442-1","summary":"ruby2.3, ruby2.5 vulnerabilities","details":"It was discovered that the Ruby CGI gem incorrectly handled parsing certain\ncookies. A remote attacker could possibly use this issue to consume\nresources, leading to a denial of service. (CVE-2025-27219)\n\nIt was discovered that the Ruby CGI gem incorrectly handled parsing certain\nregular expressions. A remote attacker could possibly use this issue to\nconsume resources, leading to a denial of service. (CVE-2025-27220)\n\nIt was discovered that the Ruby URI gem incorrectly handled certain URI\nhandling methods. A remote attacker could possibly use this issue to leak\nauthentication credentials. (CVE-2025-27221)\n\nIt was discovered that the Ruby REXML gem incorrectly handled parsing XML\ndocuments containing many digits in a hex numeric character reference. A\nremote attacker could use this issue to consume resources, leading to a\ndenial of service. (CVE-2024-49761)\n","modified":"2026-04-27T18:02:28.515753443Z","published":"2025-04-17T12:51:31Z","related":["UBUNTU-CVE-2024-49761","UBUNTU-CVE-2025-27219","UBUNTU-CVE-2025-27220","UBUNTU-CVE-2025-27221"],"upstream":["CVE-2024-49761","CVE-2025-27219","CVE-2025-27220","CVE-2025-27221","UBUNTU-CVE-2024-49761","UBUNTU-CVE-2025-27219","UBUNTU-CVE-2025-27220","UBUNTU-CVE-2025-27221"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7442-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-49761"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-27219"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-27220"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-27221"}],"affected":[{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.16+esm10?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~ubuntu16.04.16+esm10"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-2~ubuntu16.04.16+esm10","binary_name":"libruby2.3"},{"binary_version":"2.3.1-2~ubuntu16.04.16+esm10","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~ubuntu16.04.16+esm10","binary_name":"ruby2.3-tcltk"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7442-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-49761"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27219"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27220"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27221"}]}}},{"package":{"name":"ruby2.5","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.16+esm4?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-1ubuntu1.16+esm4"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2.5.1-1ubuntu1.16+esm4","binary_name":"libruby2.5"},{"binary_version":"2.5.1-1ubuntu1.16+esm4","binary_name":"ruby2.5"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7442-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U","type":"CVSS_V4"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2024-49761"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27219"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27220"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2025-27221"}]}}}],"schema_version":"1.7.5"}