{"id":"UBUNTU-CVE-2026-111135","details":"libfwsi through 20260522 contains a heap out-of-bounds read vulnerability in libfwsi_mtp_volume_values_read_data() that allows attackers to read past buffer bounds via crafted MTP volume shell items. Attackers can embed a 10 to 53 byte shell item with item data size of 44 or more in a .lnk file, jump list or shell bag to crash consuming processes.","modified":"2026-10-17T12:58:03.901522220Z","published":"2026-10-16T00:00:00Z","upstream":["CVE-2026-111135"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111135"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111135"},{"type":"REPORT","url":"https://github.com/libyal/libfwsi"},{"type":"REPORT","url":"https://github.com/libyal/libfwsi/blob/2f2aba25b888f37314a39d8c3e71c0e3ced56e59/libfwsi/libfwsi_mtp_volume_values.c#L248-L273"},{"type":"REPORT","url":"https://hackmd.io/@haind-pwn/libfwsi-mtp-values-oob-read"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/libfwsi-through-20260522-heap-out-of-bounds-read-via-libfwsi-mtp-volume-values-read-data"}],"affected":[{"package":{"name":"libfwsi","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20150701-2","20160110-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libfwsi1","binary_version":"20160110-1"},{"binary_name":"python-libfwsi","binary_version":"20160110-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20170117-1","20171103-1"],"ecosystem_specific":{"binaries":[{"binary_version":"20171103-1","binary_name":"libfwsi1"},{"binary_version":"20171103-1","binary_name":"python-libfwsi"},{"binary_name":"python3-libfwsi","binary_version":"20171103-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1","20181227-1ubuntu1","20181227-1ubuntu2","20181227-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"20181227-1.1","binary_name":"libfwsi1"},{"binary_name":"python3-libfwsi","binary_version":"20181227-1.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1.1build1","20181227-1.1build2"],"ecosystem_specific":{"binaries":[{"binary_version":"20181227-1.1build2","binary_name":"libfwsi1"},{"binary_name":"python3-libfwsi","binary_version":"20181227-1.1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1.1build3","20181227-1.1build4","20181227-1.2","20181227-1.2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libfwsi1t64","binary_version":"20181227-1.2build1"},{"binary_name":"python3-libfwsi","binary_version":"20181227-1.2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"20240423-1build1","binary_name":"libfwsi1t64"},{"binary_version":"20240423-1build1","binary_name":"python3-libfwsi"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.json"}},{"package":{"name":"libfwsi","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libfwsi?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1","20240423-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"20240423-1build1","binary_name":"libfwsi1t64"},{"binary_name":"python3-libfwsi","binary_version":"20240423-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111135.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:L/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}