Out-of-bounds Read in OpenCV
An out-of-bounds read was discovered in OpenCV before 4.1.1 (OpenCV-Python before 4.1.0.25). 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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2019-19624US | medium6.5 | — | ||
An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc… | ||||
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references
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2019-19624WEB
- https://github.com/advisories/GHSA-jggw-2q6g-c3m6ADVISORY
- https://github.com/opencv/opencv-pythonPACKAGE
- https://github.com/opencv/opencv-python/releases/tag/25WEB
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418WEB
- https://github.com/opencv/opencv/issues/14554WEB
- https://nvd.nist.gov/vuln/detail/CVE-2019-19624ADVISORY
- https://pypi.org/project/opencv-pythonPACKAGE
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