{"id":"USN-2365-1","summary":"libvncserver vulnerabilities","details":"Nicolas Ruff discovered that LibVNCServer incorrectly handled memory when\nbeing advertised large screen sizes by the server. If a user were tricked\ninto connecting to a malicious server, an attacker could use this issue to\ncause a denial of service, or possibly execute arbitrary code.\n(CVE-2014-6051, CVE-2014-6052)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled large\nClientCutText messages. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service. (CVE-2014-6053)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled zero scaling\nfactor values. A remote attacker could use this issue to cause a server to\ncrash, resulting in a denial of service. (CVE-2014-6054)\n\nNicolas Ruff discovered that LibVNCServer incorrectly handled memory in the\nfile transfer feature. A remote attacker could use this issue to cause a\nserver to crash, resulting in a denial of service, or possibly execute\narbitrary code. (CVE-2014-6055)\n","modified":"2026-04-27T15:17:34.629060471Z","published":"2014-09-29T17:12:11Z","related":["UBUNTU-CVE-2014-6051","UBUNTU-CVE-2014-6052","UBUNTU-CVE-2014-6053","UBUNTU-CVE-2014-6054","UBUNTU-CVE-2014-6055"],"upstream":["CVE-2014-6051","CVE-2014-6052","CVE-2014-6053","CVE-2014-6054","CVE-2014-6055","UBUNTU-CVE-2014-6051","UBUNTU-CVE-2014-6052","UBUNTU-CVE-2014-6053","UBUNTU-CVE-2014-6054","UBUNTU-CVE-2014-6055"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2365-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6051"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6052"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6053"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6054"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2014-6055"}],"affected":[{"package":{"name":"libvncserver","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/libvncserver@0.9.9+dfsg-1ubuntu1.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.9+dfsg-1ubuntu1.1"}]}],"versions":["0.9.9+dfsg-1","0.9.9+dfsg-1ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.9.9+dfsg-1ubuntu1.1","binary_name":"libvncserver-config"},{"binary_version":"0.9.9+dfsg-1ubuntu1.1","binary_name":"libvncserver0"},{"binary_version":"0.9.9+dfsg-1ubuntu1.1","binary_name":"linuxvnc"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2365-1.json","cves_map":{"cves":[{"id":"CVE-2014-6051","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2014-6052","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2014-6053","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2014-6054","severity":[{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2014-6055","severity":[{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:14.04:LTS"}}}],"schema_version":"1.7.5"}