{"id":"RHSA-2021:1811","summary":"Red Hat Security Advisory: libvncserver security update","modified":"2026-03-11T07:19:35.672324Z","published":"2024-09-16T05:02:38Z","upstream":["CVE-2018-21247","CVE-2019-20839","CVE-2020-14397","CVE-2020-14405","CVE-2020-25708"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2021:1811"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#moderate"},{"type":"ARTICLE","url":"https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1849877"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1849886"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1860325"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1860344"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1896739"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_1811.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2018-21247"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2018-21247"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-21247"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2019-20839"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2019-20839"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2019-20839"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2020-14397"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2020-14397"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14397"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2020-14405"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2020-14405"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14405"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2020-25708"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2020-25708"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25708"},{"type":"ARTICLE","url":"https://github.com/LibVNC/libvncserver/commit/673c07a75ed844d74676f3ccdcfdc706a7052dba"},{"type":"ARTICLE","url":"https://github.com/LibVNC/libvncserver/issues/409"}],"affected":[{"package":{"name":"libvncserver","ecosystem":"Red Hat:enterprise_linux:8::appstream","purl":"pkg:rpm/redhat/libvncserver"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::appstream","purl":"pkg:rpm/redhat/libvncserver-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-debugsource","ecosystem":"Red Hat:enterprise_linux:8::appstream","purl":"pkg:rpm/redhat/libvncserver-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-devel","ecosystem":"Red Hat:enterprise_linux:8::appstream","purl":"pkg:rpm/redhat/libvncserver-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver","ecosystem":"Red Hat:enterprise_linux:8::crb","purl":"pkg:rpm/redhat/libvncserver"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-debuginfo","ecosystem":"Red Hat:enterprise_linux:8::crb","purl":"pkg:rpm/redhat/libvncserver-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-debugsource","ecosystem":"Red Hat:enterprise_linux:8::crb","purl":"pkg:rpm/redhat/libvncserver-debugsource"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}},{"package":{"name":"libvncserver-devel","ecosystem":"Red Hat:enterprise_linux:8::crb","purl":"pkg:rpm/redhat/libvncserver-devel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:0.9.11-17.el8"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:1811.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}