Buffer Overflow Vulnerability in Capstone Disassembly Framework

CVE-2025-67873

What is CVE-2025-67873?

A vulnerability in the Capstone disassembly framework arises due to inadequate bounds checking on the Skipdata length. This flaw allows a user-provided skipdata callback to manipulate functions such as cs_disasm and cs_disasm_iter, leading to potential heap buffer overflow situations. Such an overflow can occur when memcpy operations exceed 24 bytes into cs_insn.bytes, posing risks to application integrity. The issue is addressed in a commit providing a fix to enhance the framework's security.

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References