{"id":"UBUNTU-CVE-2020-9497","details":"Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or compromised RDP server, specially-craftedPDUs could result in disclosure of information within the memory ofthe guacd process handling the connection.","modified":"2025-10-24T04:48:21Z","published":"2020-07-02T13:15:00Z","upstream":["CVE-2020-9497"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-9497"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/07/02/2"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/r65f75d3d65d1af68141f42071ebb27dda24af3e45570e593c1dbd81f%40%3Cannounce.guacamole.apache.org%3E"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-9497"}],"affected":[{"package":{"name":"guacamole-client","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/guacamole-client@0.8.3-1.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.3-1.1","0.8.3-1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"0.8.3-1.2","binary_name":"guacamole"},{"binary_version":"0.8.3-1.2","binary_name":"guacamole-tomcat"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9497.json"}},{"package":{"name":"guacamole-client","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/guacamole-client@0.9.9+dfsg-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.9+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.9+dfsg-1","binary_name":"guacamole"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9497.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}