Colin Percival's bsdiff 4.3 Memory Corruption
Posted by deepcore on July 10, 2020 – 11:13 pm
A memory corruption vulnerability is present in bspatch as shipped in Colin Percival’s bsdiff tools version 4.3. Insufficient checks when handling external inputs allows an attacker to bypass the sanity checks in place and write out of a dynamically allocated buffer boundaries. Proof of concept included.
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