{"id":"UBUNTU-CVE-2026-118384","details":"GNU mtools through 4.0.49 has an out-of-bounds write in parse_vses in vfat.c.","modified":"2026-10-28T20:16:02.250938072Z","published":"2026-10-28T03:17:00Z","upstream":["CVE-2026-118384"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-118384"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-118384"},{"type":"REPORT","url":"https://lists.gnu.org/archive/html/info-gnu/2025-06/msg00004.html"},{"type":"REPORT","url":"https://ftp.gnu.org/gnu/mtools/mtools-4.0.49.tar.gz"},{"type":"REPORT","url":"https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L399"},{"type":"REPORT","url":"https://github.com/deepin-community/mtools/blob/16d295331a1cfbcf02ad0b2f03c9b906197cf3ee/vfat.c#L444-L445"}],"affected":[{"package":{"name":"mtools","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.18-2","4.0.18-2ubuntu0.16.04"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.18-2ubuntu0.16.04","binary_name":"floppyd"},{"binary_name":"mtools","binary_version":"4.0.18-2ubuntu0.16.04"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.18-2ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.18-2ubuntu1"},{"binary_name":"mtools","binary_version":"4.0.18-2ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.23-1","4.0.23-2","4.0.23-3","4.0.24-1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.24-1"},{"binary_name":"mtools","binary_version":"4.0.24-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.33-1+really4.0.32-1","4.0.33-1+really4.0.32-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.33-1+really4.0.32-1build1"},{"binary_version":"4.0.33-1+really4.0.32-1build1","binary_name":"mtools"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.43-1","4.0.43-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.43-1build1"},{"binary_name":"mtools","binary_version":"4.0.43-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.49-1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.49-1"},{"binary_name":"mtools","binary_version":"4.0.49-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}},{"package":{"name":"mtools","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/mtools?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.48-1","4.0.49-1"],"ecosystem_specific":{"binaries":[{"binary_name":"floppyd","binary_version":"4.0.49-1"},{"binary_name":"mtools","binary_version":"4.0.49-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-118384.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"medium"}]}