{"id":"UBUNTU-CVE-2020-9498","details":"Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.","modified":"2025-10-24T04:48:21Z","published":"2020-07-02T13:15:00Z","upstream":["CVE-2020-9498"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-9498"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/07/02/3"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-9498"}],"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_name":"guacamole","binary_version":"0.8.3-1.2"},{"binary_name":"guacamole-tomcat","binary_version":"0.8.3-1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9498.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_name":"guacamole","binary_version":"0.9.9+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9498.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:H/A:H"},{"type":"Ubuntu","score":"low"}]}