CHMLib Vulnerability Alert: Integer Overflow in Header Parsing!
CHMLib 0.40 has a flaw when handling malformed CHM files. The functions _unmarshal_int32 and _unmarshal_uint32 juggle 32-bit values like they’re in a circus, but forget the safety net of proper type casting. Watch out for integer overflows during CHM header parsing!
Hot Take:
CHMLib is channeling its inner magician, making integers disappear into a puff of overflow smoke! Who knew parsing CHM files could be such a risky business? It’s a classic case of the byte that got away!
Key Points:
- CHMLib 0.40 suffers from a vulnerability due to improper handling of 32-bit integers.
- The issue arises during the parsing of malformed CHM files.
- Functions _unmarshal_int32 and _unmarshal_uint32 are at the heart of this overflow drama.
- Left shifts on signed integers without type casting lead to potential exploits.
- This vulnerability could allow attackers to execute arbitrary code or cause a denial of service.
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