{"id":"UBUNTU-CVE-2026-19411","details":"A NULL pointer vulnerability has been found in the the shim application of dp.c library. A missing NULL pointer could allow attackers to perform a denial of service attack on a system that uses shim application for UEFI bootloader.","modified":"2026-08-19T11:01:27Z","published":"2026-08-10T21:17:00Z","upstream":["CVE-2026-19411"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-19411"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-19411"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2513060"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2026-19411"}],"affected":[{"package":{"name":"secureboot-db","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/secureboot-db?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1","1.4~ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4~ubuntu0.14.04.1","binary_name":"secureboot-db"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/shim?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.4-0ubuntu4","0.8-0ubuntu2","0.9+1474479173.6c180c6-1ubuntu1","13-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"13-0ubuntu2","binary_name":"shim"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim-signed","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/shim-signed?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3","1.4","1.5","1.6","1.9","1.17~14.04.1","1.18~14.04.1","1.19~14.04.1","1.32~14.04.2","1.33.1~14.04.2","1.33.1~14.04.3","1.33.1~14.04.4","1.33.1~14.04.5"],"ecosystem_specific":{"binaries":[{"binary_name":"shim-signed","binary_version":"1.33.1~14.04.5+13-0ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"secureboot-db","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/secureboot-db?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1","1.4~ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.4~ubuntu0.16.04.1","binary_name":"secureboot-db"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/shim?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8-0ubuntu2","0.9+1474479173.6c180c6-1ubuntu1","13-0ubuntu2","15+1533136590.3beb971-0ubuntu1","15+1552672080.a4a1fbe-0ubuntu2","15.4-0ubuntu7"],"ecosystem_specific":{"binaries":[{"binary_name":"shim","binary_version":"15.4-0ubuntu7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim-signed","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/shim-signed?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.11","1.12","1.17~16.04.1","1.18~16.04.1","1.19~16.04.1","1.27~16.04.1","1.28~16.04.1","1.32~16.04.1","1.33.1~16.04.1","1.33.1~16.04.2","1.33.1~16.04.3","1.33.1~16.04.4","1.33.1~16.04.5","1.33.1~16.04.6","1.33.1~16.04.10"],"ecosystem_specific":{"binaries":[{"binary_name":"shim-signed","binary_version":"1.33.1~16.04.10+15.4-0ubuntu7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"secureboot-db","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/secureboot-db?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1","1.4~ubuntu0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"secureboot-db","binary_version":"1.4~ubuntu0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/shim?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.9+1474479173.6c180c6-1ubuntu1","13-0ubuntu2","15+1533136590.3beb971-0ubuntu1","15+1552672080.a4a1fbe-0ubuntu2","15.4-0ubuntu7","15.4-0ubuntu9","15.7-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"15.7-0ubuntu1","binary_name":"shim"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-19411.json"}},{"package":{"name":"shim-signed","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/shim-signed?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3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