{"id":"USN-6663-1","aliases":[],"status":"published","title":"openssl update","description":"As a security improvement, OpenSSL will now\nreturn deterministic random bytes instead of an error\nwhen detecting wrong padding in PKCS#1 v1.5 RSA\nto prevent its use in possible Bleichenbacher timing attacks.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2024-02-27T11:18:33Z","modified":"2026-04-22T10:44:41Z","fixes":[{"ecosystem":"Ubuntu:Pro:18.04:LTS","package":"openssl","fixed_in":["1.1.1-1ubuntu2.1~18.04.23+esm5"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"openssl","fixed_in":["1.1.1f-1ubuntu2.22"],"sources":["osv"]},{"ecosystem":"Ubuntu:22.04:LTS","package":"openssl","fixed_in":["3.0.2-0ubuntu1.15"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1-1ubuntu2.1~18.04.23+esm5"}]}],"versions":["1.0.2g-1ubuntu13","1.0.2g-1ubuntu14","1.0.2n-1ubuntu1","1.1.0g-2ubuntu1","1.1.0g-2ubuntu2","1.1.0g-2ubuntu3","1.1.0g-2ubuntu4","1.1.0g-2ubuntu4.1","1.1.0g-2ubuntu4.3","1.1.1-1ubuntu2.1~18.04.1","1.1.1-1ubuntu2.1~18.04.2","1.1.1-1ubuntu2.1~18.04.3","1.1.1-1ubuntu2.1~18.04.4","1.1.1-1ubuntu2.1~18.04.5","1.1.1-1ubuntu2.1~18.04.6","1.1.1-1ubuntu2.1~18.04.7","1.1.1-1ubuntu2.1~18.04.8","1.1.1-1ubuntu2.1~18.04.9","1.1.1-1ubuntu2.1~18.04.10","1.1.1-1ubuntu2.1~18.04.13","1.1.1-1ubuntu2.1~18.04.14","1.1.1-1ubuntu2.1~18.04.15","1.1.1-1ubuntu2.1~18.04.17","1.1.1-1ubuntu2.1~18.04.19","1.1.1-1ubuntu2.1~18.04.20","1.1.1-1ubuntu2.1~18.04.21","1.1.1-1ubuntu2.1~18.04.22","1.1.1-1ubuntu2.1~18.04.23","1.1.1-1ubuntu2.1~18.04.23+esm1","1.1.1-1ubuntu2.1~18.04.23+esm3","1.1.1-1ubuntu2.1~18.04.23+esm4"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1f-1ubuntu2.22"}]}],"versions":["1.1.1c-1ubuntu4","1.1.1d-2ubuntu3","1.1.1d-2ubuntu6","1.1.1f-1ubuntu1","1.1.1f-1ubuntu2","1.1.1f-1ubuntu2.1","1.1.1f-1ubuntu2.2","1.1.1f-1ubuntu2.3","1.1.1f-1ubuntu2.4","1.1.1f-1ubuntu2.5","1.1.1f-1ubuntu2.8","1.1.1f-1ubuntu2.9","1.1.1f-1ubuntu2.10","1.1.1f-1ubuntu2.11","1.1.1f-1ubuntu2.12","1.1.1f-1ubuntu2.13","1.1.1f-1ubuntu2.15","1.1.1f-1ubuntu2.16","1.1.1f-1ubuntu2.17","1.1.1f-1ubuntu2.18","1.1.1f-1ubuntu2.19","1.1.1f-1ubuntu2.20","1.1.1f-1ubuntu2.21"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"openssl","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-0ubuntu1.15"}]}],"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"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-6663-1","tags":["advisory"]},{"url":"https://launchpad.net/bugs/2054090","tags":["report"]}],"sources":{"osv":[{"id":"USN-6663-1","title":"openssl update","description":"As a security improvement, OpenSSL will now\nreturn deterministic random bytes instead of an error\nwhen detecting wrong padding in PKCS#1 v1.5 RSA\nto prevent its use in possible Bleichenbacher timing attacks.\n","status":"published","published":"2024-02-27T11:18:33Z","modified":"2026-04-22T10:44:41.489199Z","updated_at":"2026-11-02T16:58:17.914523Z"}]}}