{"id":"CLSA-2026-1789783613","summary":"Fix CVE(s): CVE-2026-32853, CVE-2026-32854","details":"   * SECURITY UPDATE: Heap out-of-bounds read in UltraZip subrect parsing\n     - debian/patches/CVE-2026-32853.patch: bound the subrect cursor to the\n       decompressed data in HandleUltraZipBPP() (libvncclient/ultra.c)\n     - CVE-2026-32853\n   * SECURITY UPDATE: NULL pointer dereference in httpd proxy handlers\n     - debian/patches/CVE-2026-32854.patch: NULL-check the strchr() results in\n       httpProcessInput() (libvncserver/httpd.c)\n     - CVE-2026-32854","modified":"2026-10-26T09:32:04.239277149Z","published":"2026-09-19T08:57:30Z","upstream":["CVE-2026-32853","CVE-2026-32854"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu18.04els/CLSA-2026-1789783613.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32853"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32854"}],"affected":[{"package":{"name":"libvncclient1","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libvncclient1?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.11+dfsg-1ubuntu1.4+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789783613.json"}},{"package":{"name":"libvncserver-config","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libvncserver-config?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.11+dfsg-1ubuntu1.4+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789783613.json"}},{"package":{"name":"libvncserver-dev","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libvncserver-dev?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.11+dfsg-1ubuntu1.4+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789783613.json"}},{"package":{"name":"libvncserver1","ecosystem":"TuxCare:Ubuntu:18.04","purl":"pkg:deb/tuxcare/libvncserver1?distro=ubuntu-18.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.11+dfsg-1ubuntu1.4+tuxcare.els1"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu18.04els/CLSA-2026-1789783613.json"}}],"schema_version":"1.9.0"}