CVE-2019-19624

Description

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() 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.

Weakness classification

• nvd@nist.gov: CWE-125

Primary references

• cve@mitre.org — Patch, Third Party Advisory
• cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
• nvd@nist.gov — Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Third Party Advisory