{"id":"USN-6469-1","summary":"xrdp vulnerability","details":"Ashley Newson discovered that xrdp incorrectly handled memory when\nprocessing certain incoming connections. An attacker could possibly use\nthis issue to cause a denial of service or arbitrary code execution.\n","modified":"2026-02-10T04:43:25Z","published":"2023-11-02T10:20:42Z","related":["UBUNTU-CVE-2020-4044"],"upstream":["CVE-2020-4044","UBUNTU-CVE-2020-4044"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6469-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-4044"}],"affected":[{"package":{"name":"xrdp","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/xrdp@0.6.0-1ubuntu0.1+esm2?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.0-1ubuntu0.1+esm2"}]}],"versions":["0.6.0-1","0.6.0-1ubuntu0.1","0.6.0-1ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.6.0-1ubuntu0.1+esm2","binary_name":"xrdp"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6469-1.json","cves_map":{"cves":[{"id":"CVE-2020-4044","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:14.04:LTS"}}},{"package":{"name":"xrdp","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/xrdp@0.6.1-2ubuntu0.3+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.1-2ubuntu0.3+esm2"}]}],"versions":["0.6.1-2","0.6.1-2ubuntu0.1","0.6.1-2ubuntu0.3","0.6.1-2ubuntu0.3+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.6.1-2ubuntu0.3+esm2","binary_name":"xrdp"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6469-1.json","cves_map":{"cves":[{"id":"CVE-2020-4044","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"xrdp","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/xrdp@0.9.5-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.5-2ubuntu0.1~esm1"}]}],"versions":["0.9.1-9","0.9.4-1","0.9.4-2","0.9.4-3","0.9.4-4","0.9.4-5","0.9.5-1","0.9.5-1build1","0.9.5-2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.5-2ubuntu0.1~esm1","binary_name":"xorgxrdp"},{"binary_version":"0.9.5-2ubuntu0.1~esm1","binary_name":"xrdp"},{"binary_version":"0.9.5-2ubuntu0.1~esm1","binary_name":"xrdp-pulseaudio-installer"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6469-1.json","cves_map":{"cves":[{"id":"CVE-2020-4044","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"}}},{"package":{"name":"xrdp","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/xrdp@0.9.12-1ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.12-1ubuntu0.1"}]}],"versions":["0.9.9-1","0.9.12-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.12-1ubuntu0.1","binary_name":"xrdp"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6469-1.json","cves_map":{"cves":[{"id":"CVE-2020-4044","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.3"}