CVEs-PoC/2019/CVE-2019-17263.md

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

POC

Reference

• http://packetstormsecurity.com/files/154774/libyal-libfwsi-Buffer-Overread.html
• https://github.com/libyal/libfwsi/issues/13

Github

No PoCs found on GitHub currently.