Highlights
Denial of Service: 4 prior fixes. Scrutinize any change in this area.
pefile.py: most-fixed (3 issues). Treat as high-risk during review.
0 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Denial of Service: Truncated PE files or inconsistent section headers can trigger out-of-bounds reads or infinite parsing loops if virtual address structures and raw data sizes are not validated and clamped correctly.
Denial of Service: CPU exhaustion can be triggered via quadratic complexity validation helpers, such as checking excessively long DOS filenames without proper character deduplication or length limits.
Denial of Service: Division by zero in structural heuristics (e.g., determining packing status) occurs when calculating ratios of PE files that yield trimmed data of zero length.