{"id":"USN-8625-1","aliases":[],"status":"published","title":"openssl vulnerability","description":"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.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2026-07-30T13:38:32Z","modified":"2026-07-30T20:30:20Z","fixes":[{"ecosystem":"Ubuntu:22.04:LTS","package":"openssl","fixed_in":["3.0.2-0ubuntu1.26"],"sources":["osv"]},{"ecosystem":"Ubuntu:24.04:LTS","package":"openssl","fixed_in":["3.0.13-0ubuntu3.12"],"sources":["osv"]},{"ecosystem":"Ubuntu:26.04:LTS","package":"openssl","fixed_in":["3.5.5-1ubuntu3.3"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"openssl","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"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"openssl","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"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"openssl","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"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-8625-1","tags":["advisory"]},{"url":"https://launchpad.net/bugs/2161371","tags":["report"]}],"sources":{"osv":[{"id":"USN-8625-1","title":"openssl vulnerability","description":"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.","status":"published","published":"2026-07-30T13:38:32Z","modified":"2026-07-30T20:30:20.851624858Z","updated_at":"2026-11-02T16:58:25.103481Z"}]}}