CVE-2017-17760: Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV

The vulnerability description explicitly identifies cv::PxMDecoder::readData in grfmt_pxm.cpp as the vulnerable function. The GitHub commit diff shows the fix involved changing the memcpy size parameter from CV_ELEM_SIZE1(m_type) to img.elemSize1(), confirming the root cause was an incorrect size calculation. The ASAN error trace in the GitHub issue demonstrates a heap-buffer-overflow occurring in this function during memory copy operations. All primary sources (CVE, GHSA, commit diff, and issue tracker) consistently point to this single function as the vulnerability location.