{"id":"UBUNTU-CVE-2018-20024","details":"LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS.","modified":"2026-01-30T02:00:01.707473Z","published":"2018-12-19T00:00:00Z","related":["USN-3877-1","USN-4547-1","USN-4547-2","USN-4587-1"],"upstream":["CVE-2018-20024"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-20024"},{"type":"REPORT","url":"https://ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-034-libvnc-null-pointer-dereference/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3877-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4547-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4547-2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4587-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-20024"}],"affected":[{"package":{"name":"libvncserver","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libvncserver@0.9.9+dfsg-1ubuntu1.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.9+dfsg-1ubuntu1.4"}]}],"versions":["0.9.9+dfsg-1","0.9.9+dfsg-1ubuntu1","0.9.9+dfsg-1ubuntu1.1","0.9.9+dfsg-1ubuntu1.2","0.9.9+dfsg-1ubuntu1.3"],"ecosystem_specific":{"availability":"No 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