{"id":"USN-4171-6","aliases":[],"status":"published","title":"apport regression","description":"USN-4171-1 fixed vulnerabilities in Apport. The update caused a regression\nwhen handling configuration files. This update fixes the problem, and also\nintroduces further hardening measures.\n\nOriginal advisory details:\n\n Kevin Backhouse discovered Apport would read its user-controlled settings\n file as the root user. This could be used by a local attacker to possibly\n crash Apport or have other unspecified consequences. (CVE-2019-11481)\n \n Sander Bos discovered a race-condition in Apport during core dump\n creation. This could be used by a local attacker to generate a crash report\n for a privileged process that is readable by an unprivileged user.\n (CVE-2019-11482)\n \n Sander Bos discovered Apport mishandled crash dumps originating from\n containers. This could be used by a local attacker to generate a crash\n report for a privileged process that is readable by an unprivileged user.\n (CVE-2019-11483)\n \n Sander Bos discovered Apport mishandled lock-file creation. This could be\n used by a local attacker to cause a denial of service against Apport.\n (CVE-2019-11485)\n \n Kevin Backhouse discovered Apport read various process-specific files with\n elevated privileges during crash dump generation. This could could be used\n by a local attacker to generate a crash report for a privileged process\n that is readable by an unprivileged user. (CVE-2019-15790)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-11-12T13:22:09Z","modified":"2026-02-10T04:41:40Z","fixes":[{"ecosystem":"Ubuntu:16.04:LTS","package":"apport","fixed_in":["2.20.1-0ubuntu2.27"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"apport","fixed_in":["2.20.9-0ubuntu7.20"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"apport","fixed_in":["2.20.11-0ubuntu27.12"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"apport","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.1-0ubuntu2.27"}]}],"versions":["2.19.1-0ubuntu3","2.19.2-0ubuntu1","2.19.2-0ubuntu2","2.19.2-0ubuntu3","2.19.2-0ubuntu4","2.19.2-0ubuntu5","2.19.2-0ubuntu6","2.19.2-0ubuntu8","2.19.2-0ubuntu9","2.19.3-0ubuntu1","2.19.3-0ubuntu2","2.19.3-0ubuntu3","2.19.4-0ubuntu1","2.19.4-0ubuntu2","2.20-0ubuntu2","2.20-0ubuntu3","2.20.1-0ubuntu1","2.20.1-0ubuntu2","2.20.1-0ubuntu2.1","2.20.1-0ubuntu2.2","2.20.1-0ubuntu2.4","2.20.1-0ubuntu2.5","2.20.1-0ubuntu2.6","2.20.1-0ubuntu2.9","2.20.1-0ubuntu2.10","2.20.1-0ubuntu2.12","2.20.1-0ubuntu2.13","2.20.1-0ubuntu2.14","2.20.1-0ubuntu2.15","2.20.1-0ubuntu2.16","2.20.1-0ubuntu2.17","2.20.1-0ubuntu2.18","2.20.1-0ubuntu2.19","2.20.1-0ubuntu2.20","2.20.1-0ubuntu2.21","2.20.1-0ubuntu2.22","2.20.1-0ubuntu2.23","2.20.1-0ubuntu2.24","2.20.1-0ubuntu2.25","2.20.1-0ubuntu2.26"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"apport","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.9-0ubuntu7.20"}]}],"versions":["2.20.7-0ubuntu3","2.20.7-0ubuntu3.1","2.20.7-0ubuntu4","2.20.8-0ubuntu1","2.20.8-0ubuntu2","2.20.8-0ubuntu3","2.20.8-0ubuntu4","2.20.8-0ubuntu5","2.20.8-0ubuntu6","2.20.8-0ubuntu7","2.20.8-0ubuntu8","2.20.8-0ubuntu9","2.20.8-0ubuntu10","2.20.9-0ubuntu1","2.20.9-0ubuntu2","2.20.9-0ubuntu4","2.20.9-0ubuntu5","2.20.9-0ubuntu6","2.20.9-0ubuntu7","2.20.9-0ubuntu7.1","2.20.9-0ubuntu7.2","2.20.9-0ubuntu7.3","2.20.9-0ubuntu7.4","2.20.9-0ubuntu7.5","2.20.9-0ubuntu7.6","2.20.9-0ubuntu7.7","2.20.9-0ubuntu7.8","2.20.9-0ubuntu7.9","2.20.9-0ubuntu7.11","2.20.9-0ubuntu7.12","2.20.9-0ubuntu7.13","2.20.9-0ubuntu7.14","2.20.9-0ubuntu7.15","2.20.9-0ubuntu7.16","2.20.9-0ubuntu7.17","2.20.9-0ubuntu7.18","2.20.9-0ubuntu7.19"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"apport","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.20.11-0ubuntu27.12"}]}],"versions":["2.20.11-0ubuntu8","2.20.11-0ubuntu9","2.20.11-0ubuntu13","2.20.11-0ubuntu14","2.20.11-0ubuntu15","2.20.11-0ubuntu16","2.20.11-0ubuntu17","2.20.11-0ubuntu18","2.20.11-0ubuntu19","2.20.11-0ubuntu20","2.20.11-0ubuntu21","2.20.11-0ubuntu22","2.20.11-0ubuntu24","2.20.11-0ubuntu25","2.20.11-0ubuntu26","2.20.11-0ubuntu27","2.20.11-0ubuntu27.2","2.20.11-0ubuntu27.3","2.20.11-0ubuntu27.4","2.20.11-0ubuntu27.6","2.20.11-0ubuntu27.8","2.20.11-0ubuntu27.9","2.20.11-0ubuntu27.10","2.20.11-0ubuntu27.11"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-4171-6","tags":["advisory"]},{"url":"https://launchpad.net/bugs/1903332","tags":["report"]}],"sources":{"osv":[{"id":"USN-4171-6","title":"apport regression","description":"USN-4171-1 fixed vulnerabilities in Apport. The update caused a regression\nwhen handling configuration files. This update fixes the problem, and also\nintroduces further hardening measures.\n\nOriginal advisory details:\n\n Kevin Backhouse discovered Apport would read its user-controlled settings\n file as the root user. This could be used by a local attacker to possibly\n crash Apport or have other unspecified consequences. (CVE-2019-11481)\n \n Sander Bos discovered a race-condition in Apport during core dump\n creation. This could be used by a local attacker to generate a crash report\n for a privileged process that is readable by an unprivileged user.\n (CVE-2019-11482)\n \n Sander Bos discovered Apport mishandled crash dumps originating from\n containers. This could be used by a local attacker to generate a crash\n report for a privileged process that is readable by an unprivileged user.\n (CVE-2019-11483)\n \n Sander Bos discovered Apport mishandled lock-file creation. This could be\n used by a local attacker to cause a denial of service against Apport.\n (CVE-2019-11485)\n \n Kevin Backhouse discovered Apport read various process-specific files with\n elevated privileges during crash dump generation. This could could be used\n by a local attacker to generate a crash report for a privileged process\n that is readable by an unprivileged user. (CVE-2019-15790)\n","status":"published","published":"2020-11-12T13:22:09Z","modified":"2026-02-10T04:41:40Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}