{"id":"UBUNTU-CVE-2026-110716","details":"unshield through 1.6.2 contains a heap out-of-bounds read vulnerability in unshield_get_file_table() that allows attackers to read past heap allocations via unchecked cabinet header offsets. Attackers can supply a crafted InstallShield cabinet with out-of-range file_table_offset or large file counts to crash the unshield tool or library consumers.","modified":"2026-10-17T12:58:03.451627302Z","published":"2026-10-15T00:00:00Z","upstream":["CVE-2026-110716"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110716"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-110716"},{"type":"REPORT","url":"https://github.com/twogood/unshield"},{"type":"REPORT","url":"https://github.com/twogood/unshield/blob/51de441ba6893f11026d4671ccef9e8e2a4634fa/lib/libunshield.c#L195"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/unshield-header-filetable-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/unshield-through-1.6.2-heap-out-of-bounds-read-via-unshield-get-file-table"}],"affected":[{"package":{"name":"unshield","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.0-1","binary_name":"libunshield0"},{"binary_name":"unshield","binary_version":"1.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield0","binary_version":"1.4.2-1"},{"binary_name":"unshield","binary_version":"1.4.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield0","binary_version":"1.4.2-1"},{"binary_name":"unshield","binary_version":"1.4.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield0","binary_version":"1.4.2-1"},{"binary_version":"1.4.2-1","binary_name":"unshield"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.2-1","1.5.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield0","binary_version":"1.5.1-1"},{"binary_version":"1.5.1-1","binary_name":"unshield"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield1","binary_version":"1.6.2-2"},{"binary_version":"1.6.2-2","binary_name":"unshield"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}},{"package":{"name":"unshield","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/unshield?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.5.1-2","1.6.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libunshield1","binary_version":"1.6.2-2"},{"binary_version":"1.6.2-2","binary_name":"unshield"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-110716.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}