{"id":"UBUNTU-CVE-2026-111140","details":"libregf through 20260526 contains a heap out-of-bounds read in libregf_value_item_read_value_data() because it bounds value data size without subtracting the 4-byte old-format cell offset. Attackers can supply a crafted version 1.0/1.1 REGF hive with a value data cell ending its hive bin to leak adjacent heap bytes or crash parsers like regfexport and plaso.","modified":"2026-10-17T12:58:04.053871721Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-111140"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111140"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111140"},{"type":"REPORT","url":"https://github.com/libyal/libregf"},{"type":"REPORT","url":"https://github.com/libyal/libregf/blob/1a4bd856484263caa4a5e0d6ba377c3dc69150c7/libregf/libregf_value_item.c#L789-L935"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/libregf-value-data-offset-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libregf-through-20260526-heap-out-of-bounds-read-via-libregf-value-item-read-value-data"}],"affected":[{"package":{"name":"libregf","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20150704-2","20151205-1","20151223-1","20160107-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20160107-1"},{"binary_version":"20160107-1","binary_name":"libregf1"},{"binary_version":"20160107-1","binary_name":"python-libregf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170130-1build1","20170130-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20170130-2"},{"binary_name":"libregf1","binary_version":"20170130-2"},{"binary_version":"20170130-2","binary_name":"python-libregf"},{"binary_version":"20170130-2","binary_name":"python3-libregf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20190303-1","20190303-1ubuntu1","20190303-1ubuntu2","20190303-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20190303-1.1"},{"binary_version":"20190303-1.1","binary_name":"libregf1"},{"binary_version":"20190303-1.1","binary_name":"python3-libregf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20201007-2","20201007-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20201007-2build1"},{"binary_name":"libregf1","binary_version":"20201007-2build1"},{"binary_name":"python3-libregf","binary_version":"20201007-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20201007-2build2","20201007-2build3","20201007-2.1","20201007-2.1build1","20201007-2.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20201007-2.1build2"},{"binary_name":"libregf1t64","binary_version":"20201007-2.1build2"},{"binary_name":"python3-libregf","binary_version":"20201007-2.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240421-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20240421-2build1"},{"binary_name":"libregf1t64","binary_version":"20240421-2build1"},{"binary_name":"python3-libregf","binary_version":"20240421-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111140.json"}},{"package":{"name":"libregf","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libregf?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240421-1build1","20240421-2","20240421-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libregf-utils","binary_version":"20240421-2build1"},{"binary_name":"libregf1t64","binary_version":"20240421-2build1"},{"binary_version":"20240421-2build1","binary_name":"python3-libregf"}]},"database_specific":{"source":"https://githu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