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Library for reading Microsoft ITSS/CHM format files.

CVE History

CVEPublishedCVSS v3CVSS v2
5.6 MEDIUM

CHMLib through 2bef8d0, as used in SumatraPDF and other products, has a chm_lib.c _chm_decompress_block integer overflow. There is a resultant heap-based buffer overflow in _chm_fetch_bytes.