CVE-2019-19624: Out-of-bounds Read

October 12, 2021

An out-of-bounds read was discovered in OpenCV Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

References

access.redhat.com/security/cve/cve-2019-19624
github.com/advisories/GHSA-jggw-2q6g-c3m6
github.com/opencv/opencv-python/releases/tag/25
github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
github.com/opencv/opencv/issues/14554
nvd.nist.gov/vuln/detail/CVE-2019-19624

Code Behaviors & Features

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