{"id":"USN-4134-2","aliases":[],"status":"published","title":"ibus regression","description":"USN-4134-1 fixed a vulnerability in IBus. The security fix introduced a\nregression when being used with Qt applications. This update reverts the\nsecurity fix pending further investigation.\n\nOriginal advisory details:\n\n Simon McVittie discovered that IBus did not enforce appropriate access\n controls on its private D-Bus socket. A local unprivileged user who\n discovers the IBus socket address of another user could exploit this to\n capture the key strokes of the other user.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2019-09-23T13:33:40Z","modified":"2026-04-22T10:00:10Z","fixes":[{"ecosystem":"Ubuntu:16.04:LTS","package":"ibus","fixed_in":["1.5.11-1ubuntu2.3"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"ibus","fixed_in":["1.5.17-3ubuntu5.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"ibus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.11-1ubuntu2.3"}]}],"versions":["1.5.10-1ubuntu1","1.5.11-1ubuntu1","1.5.11-1ubuntu2","1.5.11-1ubuntu2.1","1.5.11-1ubuntu2.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"ibus","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.17-3ubuntu5.2"}]}],"versions":["1.5.14-2ubuntu1","1.5.14-3ubuntu1","1.5.17-1ubuntu1","1.5.17-3ubuntu1","1.5.17-3ubuntu3","1.5.17-3ubuntu4","1.5.17-3ubuntu5","1.5.17-3ubuntu5.1"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-4134-2","tags":["advisory"]},{"url":"https://launchpad.net/bugs/1844853","tags":["report"]}],"sources":{"osv":[{"id":"USN-4134-2","title":"ibus regression","description":"USN-4134-1 fixed a vulnerability in IBus. The security fix introduced a\nregression when being used with Qt applications. This update reverts the\nsecurity fix pending further investigation.\n\nOriginal advisory details:\n\n Simon McVittie discovered that IBus did not enforce appropriate access\n controls on its private D-Bus socket. A local unprivileged user who\n discovers the IBus socket address of another user could exploit this to\n capture the key strokes of the other user.\n","status":"published","published":"2019-09-23T13:33:40Z","modified":"2026-04-22T10:00:10.657923Z","updated_at":"2026-11-02T16:58:14.019824Z"}]}}