{"id":"UBUNTU-CVE-2026-91752","details":"GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.","modified":"2026-09-16T14:03:36.419540551Z","published":"2026-09-15T01:16:00Z","upstream":["CVE-2026-91752"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-91752"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-91752"},{"type":"REPORT","url":"https://github.com/Haitam-lazaar/libextractor-ole2-rce"},{"type":"REPORT","url":"https://git.gnunet.org/gnunet/libextractor/commit/04004eb19033e093938138b09befdf31e71e8522.html"},{"type":"REPORT","url":"https://git.gnunet.org/gnunet/libextractor/commit/2781c7e9095f4ddaff4f535d69342f3903b18422.html"},{"type":"REPORT","url":"https://www.gnu.org/software/libextractor/"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/gnu-libextractor-before-1.15-stack-overflow-via-ole2"}],"affected":[{"package":{"name":"libextractor","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.1-1ubuntu1","1:1.2-1ubuntu1","1:1.3-1","1:1.3-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1:1.3-1ubuntu0.1~esm1","binary_name":"extract"},{"binary_name":"libextractor3","binary_version":"1:1.3-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91752.json"}},{"package":{"name":"libextractor","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.3-2build1","1:1.3-2ubuntu1","1:1.3-3","1:1.3-4+deb9u3build0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1:1.3-4+deb9u3build0.16.04.1","binary_name":"extract"},{"binary_name":"libextractor3","binary_version":"1:1.3-4+deb9u3build0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91752.json"}},{"package":{"name":"libextractor","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.3-4build3","1:1.6-1","1:1.6-1build1","1:1.6-2"],"ecosystem_specific":{"binaries":[{"binary_name":"extract","binary_version":"1:1.6-2"},{"binary_version":"1:1.6-2","binary_name":"libextractor3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91752.json"}},{"package":{"name":"libextractor","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.9-2","1:1.9-2ubuntu1","1:1.9-3"],"ecosystem_specific":{"binaries":[{"binary_name":"extract","binary_version":"1:1.9-3"},{"binary_name":"libextractor3","binary_version":"1:1.9-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91752.json"}},{"package":{"name":"libextractor","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.11-5"],"ecosystem_specific":{"binaries":[{"binary_name":"extract","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-archive"},{"binary_name":"libextractor-plugin-av","binary_version":"1:1.11-5"},{"binary_name":"libextractor-plugin-exiv2","binary_version":"1:1.11-5"},{"binary_name":"libextractor-plugin-flac","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-gif"},{"binary_name":"libextractor-plugin-gstreamer","binary_version":"1:1.11-5"},{"binary_name":"libextractor-plugin-html","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-jpeg"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-midi"},{"binary_name":"libextractor-plugin-mpeg","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-ogg"},{"binary_name":"libextractor-plugin-ole2","binary_version":"1:1.11-5"},{"binary_name":"libextractor-plugin-pdf","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-rpm"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugin-thumbnailgtk"},{"binary_name":"libextractor-plugin-tiff","binary_version":"1:1.11-5"},{"binary_version":"1:1.11-5","binary_name":"libextractor-plugins-all"},{"binary_name":"libextractor-plugins-misc","binary_version":"1:1.11-5"},{"binary_name":"libextractor3","binary_version":"1:1.11-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-91752.json"}},{"package":{"name":"libextractor","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libextractor?arch=source&distro=noble"},"r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