{"id":"UBUNTU-CVE-2016-4804","details":"The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.","modified":"2026-02-04T03:09:35.188134Z","published":"2016-05-19T00:00:00Z","related":["USN-2986-1"],"upstream":["CVE-2016-4804"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-4804"},{"type":"REPORT","url":"https://blog.fuzzing-project.org/44-dosfstools-fsck.vfat-Several-invalid-memory-accesses.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2986-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-4804"}],"affected":[{"package":{"name":"dosfstools","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/dosfstools@3.0.26-1ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.26-1ubuntu0.1"}]}],"versions":["3.0.16-2ubuntu2","3.0.24-1","3.0.25-1","3.0.26-1"],"ecosystem_specific":{"binaries":[{"binary_name":"dosfstools","binary_version":"3.0.26-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4804.json"}},{"package":{"name":"dosfstools","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/dosfstools@3.0.28-2ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.28-2ubuntu0.1"}]}],"versions":["3.0.28-1","3.0.28-2"],"ecosystem_specific":{"binaries":[{"binary_name":"dosfstools","binary_version":"3.0.28-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-4804.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}