{"id":"CVE-2019-17263","aliases":["DEBIAN-CVE-2019-17263","EUVD-2019-7679","GHSA-wpqw-8rxf-9cw7"],"status":"disputed","title":"In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in...","description":"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","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0054,"percentile":0.45701,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2019-10-06T21:16:50Z","modified":"2026-10-24T10:30:26Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"libfwsi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1.1","20181227-1.2","20181227-1.2~exp1","20181227-2","20240423-1"]},{"source":"osv","ecosystem":"Debian:13","package":"libfwsi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1"]},{"source":"osv","ecosystem":"Debian:14","package":"libfwsi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1"]},{"source":"osv","ecosystem":"Debian:12","package":"liblnk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20181227-1.1","20181227-1.2","20181227-1.2~exp1","20181227-2","20240423-1"]},{"source":"osv","ecosystem":"Debian:13","package":"liblnk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1"]},{"source":"osv","ecosystem":"Debian:14","package":"liblnk","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["20240423-1"]}],"products":[{"vendor":"libfwsi_project","product":"libfwsi"}],"references":[{"url":"https://github.com/libyal/libfwsi/issues/13","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://github.com/libyal/libfwsi/compare/20181227...20191006","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"http://packetstormsecurity.com/files/154774/libyal-libfwsi-Buffer-Overread.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17263"},{"url":"https://github.com/advisories/GHSA-wpqw-8rxf-9cw7"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-17263","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-17263","description":"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","status":"disputed","published":"2019-10-06T21:16:50Z","modified":"2024-08-05T01:33:17.368Z","updated_at":"2026-11-02T14:20:24.678649Z"}],"euvd":[{"id":"EUVD-2019-7679","description":"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","status":"published","published":"2019-10-06T21:16:50Z","modified":"2024-08-05T01:33:17Z","updated_at":"2026-11-03T02:40:30.328063Z"}],"ghsa":[{"id":"GHSA-wpqw-8rxf-9cw7","title":"In libyal libfwsi before 20191006, libfwsi_extension_block_copy_from_byte_stream in...","description":"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.","status":"published","published":"2022-05-24T16:57:57Z","modified":"2024-03-30T05:01:36Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:55:44.65747Z"}],"nvd":[{"id":"CVE-2019-17263","description":"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","status":"disputed","published":"2019-10-06T22:15:10.227Z","modified":"2026-06-17T02:23:35.93Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-17263","description":"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","status":"published","published":"2019-10-06T22:15:10.227Z","modified":"2026-10-24T10:30:26.281430446Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-17263","description":"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","status":"published","published":"2019-10-06T22:15:10.227Z","modified":"2026-09-21T07:03:08.014867619Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:45:31.867036Z"}]}}