OpenCV 3.3.1 has a Buffer Overflow in the cv::PxMDecoder::readData function in grfmt_pxm.cpp, because an incorrect size value is used.
www.securityfocus.com/bid/102974
github.com/opencv/opencv/issues/10351
github.com/opencv/opencv/pull/10369/commits/7bbe1a53cfc097b82b1589f7915a2120de39274c
lists.debian.org/debian-lts-announce/2018/01/msg00008.html
lists.debian.org/debian-lts-announce/2018/07/msg00030.html
lists.debian.org/debian-lts-announce/2021/10/msg00028.html