CVE-2019-19624 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Reference

https://access.redhat.com/security/cve/cve-2019-19624 https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418 https://github.com/opencv/opencv/issues/14554

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

LOW

Base Severity

6.5