{"id":"USN-8625-1","summary":"openssl vulnerability","details":"It was discovered that OpenSSL incorrectly allocated memory buffers in the\nSSL/TLS state machine when receiving handshake data. A remote attacker\ncould possibly use this issue to cause OpenSSL to consume excessive memory,\nleading to a denial of service. This issue is known as the \"HollowByte\"\ndenial of service.","modified":"2026-07-30T20:30:20.851624858Z","published":"2026-07-30T13:38:32Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8625-1"},{"type":"REPORT","url":"https://launchpad.net/bugs/2161371"}],"affected":[{"package":{"name":"openssl","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-0ubuntu1.26"}]}],"versions":["1.1.1l-1ubuntu1","3.0.0-1ubuntu1","3.0.1-0ubuntu1","3.0.2-0ubuntu1","3.0.2-0ubuntu1.1","3.0.2-0ubuntu1.2","3.0.2-0ubuntu1.4","3.0.2-0ubuntu1.5","3.0.2-0ubuntu1.6","3.0.2-0ubuntu1.7","3.0.2-0ubuntu1.8","3.0.2-0ubuntu1.9","3.0.2-0ubuntu1.10","3.0.2-0ubuntu1.12","3.0.2-0ubuntu1.13","3.0.2-0ubuntu1.14","3.0.2-0ubuntu1.15","3.0.2-0ubuntu1.16","3.0.2-0ubuntu1.17","3.0.2-0ubuntu1.18","3.0.2-0ubuntu1.19","3.0.2-0ubuntu1.20","3.0.2-0ubuntu1.21","3.0.2-0ubuntu1.23","3.0.2-0ubuntu1.25"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libssl3","binary_version":"3.0.2-0ubuntu1.26"},{"binary_name":"openssl","binary_version":"3.0.2-0ubuntu1.26"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8625-1.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.13-0ubuntu3.12"}]}],"versions":["3.0.10-1ubuntu2","3.0.10-1ubuntu2.1","3.0.10-1ubuntu3","3.0.10-1ubuntu4","3.0.13-0ubuntu2","3.0.13-0ubuntu3","3.0.13-0ubuntu3.1","3.0.13-0ubuntu3.2","3.0.13-0ubuntu3.3","3.0.13-0ubuntu3.4","3.0.13-0ubuntu3.5","3.0.13-0ubuntu3.6","3.0.13-0ubuntu3.7","3.0.13-0ubuntu3.9","3.0.13-0ubuntu3.11"],"ecosystem_specific":{"binaries":[{"binary_version":"3.0.13-0ubuntu3.12","binary_name":"libssl3t64"},{"binary_version":"3.0.13-0ubuntu3.12","binary_name":"openssl"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8625-1.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.5-1ubuntu3.3"}]}],"versions":["3.5.3-1ubuntu2","3.5.5-1ubuntu1","3.5.5-1ubuntu3","3.5.5-1ubuntu3.2"],"ecosystem_specific":{"binaries":[{"binary_name":"libssl3t64","binary_version":"3.5.5-1ubuntu3.3"},{"binary_name":"openssl","binary_version":"3.5.5-1ubuntu3.3"},{"binary_name":"openssl-provider-legacy","binary_version":"3.5.5-1ubuntu3.3"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[],"ecosystem":"Ubuntu:26.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8625-1.json"}}],"schema_version":"1.7.5"}