Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
pygobject/pycairo
main @ 1719cc9
3
Fixes
0
CVEs
HIGH
Peak severity
66.7%
Coverage
Highlights
Integer Overflow: 1 prior fix. Scrutinize any change in this area.
cairo/bufferproxy.c: most-fixed (2 issues). Treat as high-risk during review.
3 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.
Integer Overflow: Allocation size computed as (unsigned int)count * sizeof(double) can overflow, leading to undersized heap buffers and subsequent heap overflow.
Use-After-Free: Deallocation path calls Py_DECREF on exporter without clearing the reference first, allowing a dangling pointer to be dereferenced later.
Memory Safety: PyBuffer_FillInfo called without correctly propagating readonly flag, permitting writes to read-only memory regions.