{"id":"UBUNTU-CVE-2026-116743","details":"libyal libmsiecf through 20260525 contains a double free vulnerability in libmsiecf_url_values_read_data() that allows attackers to corrupt heap memory via crafted partial URL records. Attackers can supply a crafted MSIE cache index.dat file whose recovered partial record has an oversized unknown_offset, crashing forensic tools processing it.","modified":"2026-10-28T20:17:46.159957900Z","published":"2026-10-26T22:16:00Z","upstream":["CVE-2026-116743"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-116743"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-116743"},{"type":"REPORT","url":"https://github.com/libyal/libmsiecf"},{"type":"REPORT","url":"https://github.com/cveproject/cvelistv5/tree/main/cves/2026/116xxx/cve-2026-116743.json"},{"type":"REPORT","url":"https://github.com/libyal/libmsiecf/blob/20260525/libmsiecf/libmsiecf_url_values.c#l824"},{"type":"REPORT","url":"https://github.com/libyal/libmsiecf/commit/a99a703d190d62f6c21b6225cf84ce80037e45d5"},{"type":"REPORT","url":"https://github.com/libyal/libmsiecf/issues/6"},{"type":"REPORT","url":"https://hackmd.io/@haindpwn/libmsiecf-url-record-partial-recovery-double-free"},{"type":"REPORT","url":"https://nvd.nist.gov/vuln/detail/cve-2026-116743"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libyal-libmsiecf-through-20260525-double-free-via-libmsiecf-url-values-read-data"}],"affected":[{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20150708-2","20151205-1","20151220-1","20160107-1"],"ecosystem_specific":{"binaries":[{"binary_version":"20160107-1","binary_name":"libmsiecf-utils"},{"binary_version":"20160107-1","binary_name":"libmsiecf1"},{"binary_name":"python-libmsiecf","binary_version":"20160107-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170116-1build1","20170116-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmsiecf-utils","binary_version":"20170116-2"},{"binary_name":"libmsiecf1","binary_version":"20170116-2"},{"binary_version":"20170116-2","binary_name":"python-libmsiecf"},{"binary_name":"python3-libmsiecf","binary_version":"20170116-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1","20181227-1ubuntu1","20181227-1ubuntu2","20181227-1.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmsiecf-utils","binary_version":"20181227-1.1"},{"binary_name":"libmsiecf1","binary_version":"20181227-1.1"},{"binary_version":"20181227-1.1","binary_name":"python3-libmsiecf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-2","20181227-2build1"],"ecosystem_specific":{"binaries":[{"binary_version":"20181227-2build1","binary_name":"libmsiecf-utils"},{"binary_name":"libmsiecf1","binary_version":"20181227-2build1"},{"binary_version":"20181227-2build1","binary_name":"python3-libmsiecf"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-2build2","20181227-2build3","20181227-2.1","20181227-2.1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"20181227-2.1build1","binary_name":"libmsiecf-utils"},{"binary_name":"libmsiecf1t64","binary_version":"20181227-2.1build1"},{"binary_name":"python3-libmsiecf","binary_version":"20181227-2.1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-3build1","20240425-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmsiecf-utils","binary_version":"20240425-1"},{"binary_version":"20240425-1","binary_name":"libmsiecf1t64"},{"binary_name":"python3-libmsiecf","binary_version":"20240425-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116743.json"}},{"package":{"name":"libmsiecf","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libmsiecf?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYS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