#VU30559 Out-of-bounds read in OpenCV - CVE-2019-19624
Published: December 6, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30559
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-19624
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
OpenCV
OpenCV
Software vendor:
Itseez
Itseez
Description
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
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.
Remediation
Install update from vendor's website.