{"id":"DEBIAN-CVE-2019-15680","details":"TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity.","modified":"2026-09-09T07:01:48.369255048Z","published":"2019-10-29T19:15:18.033Z","upstream":["CVE-2019-15680"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2019-15680"}],"affected":[{"package":{"name":"libvncserver","ecosystem":"Debian:12","purl":"pkg:deb/debian/libvncserver?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.14+dfsg-1","0.9.14+dfsg-1+deb12u1","0.9.14+dfsg-1+deb12u2","0.9.15+dfsg-1","0.9.15+dfsg-2","0.9.15+dfsg-3","0.9.15+dfsg-4","0.9.15+dfsg-5","0.9.15+dfsg-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}},{"package":{"name":"libvncserver","ecosystem":"Debian:13","purl":"pkg:deb/debian/libvncserver?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.15+dfsg-1","0.9.15+dfsg-1+deb13u1","0.9.15+dfsg-1+deb13u2","0.9.15+dfsg-2","0.9.15+dfsg-3","0.9.15+dfsg-4","0.9.15+dfsg-5","0.9.15+dfsg-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}},{"package":{"name":"libvncserver","ecosystem":"Debian:14","purl":"pkg:deb/debian/libvncserver?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9.15+dfsg-1","0.9.15+dfsg-2","0.9.15+dfsg-3","0.9.15+dfsg-4","0.9.15+dfsg-5","0.9.15+dfsg-6"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}},{"package":{"name":"tightvnc","ecosystem":"Debian:12","purl":"pkg:deb/debian/tightvnc?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.3.9-9.1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}},{"package":{"name":"tightvnc","ecosystem":"Debian:13","purl":"pkg:deb/debian/tightvnc?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.3.9-9.1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}},{"package":{"name":"tightvnc","ecosystem":"Debian:14","purl":"pkg:deb/debian/tightvnc?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.3.9-9.1"}]}],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2019-15680.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}