{"id":"CVE-2019-17263","details":"In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in libfwsi_extension_block.c has a heap-based buffer over-read because rejection of an unsupported size only considers values less than 6, even though values of 6 and 7 are also unsupported. NOTE: the vendor has disputed this as described in the GitHub issue","modified":"2026-10-24T10:30:26.281430446Z","published":"2019-10-06T22:15:10.227Z","database_specific":{},"references":[{"type":"FIX","url":"https://github.com/libyal/libfwsi/compare/20181227...20191006"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/154774/libyal-libfwsi-Buffer-Overread.html"},{"type":"EVIDENCE","url":"https://github.com/libyal/libfwsi/issues/13"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libyal/libfwsi","events":[{"introduced":"0"},{"fixed":"20191006"}],"database_specific":{"extracted_events":[{"source":"CPE_RANGE","cpe":"cpe:2.3:a:libfwsi_project:libfwsi:*:*:*:*:*:*:*:*","range":[{"introduced":"0"},{"fixed":"20191006"}]}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17263.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}