Medium severity · published Dec 6, 2019
CVE-2019-19624
An out-of-bounds read was discovered in OpenCV before 4.1.1
6.5
CVSS
1.8%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0 · source: NVD
OP
Opencv · Opencv
before 4.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19624
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19624
Patch
https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
Exploit
https://github.com/opencv/opencv/issues/14554
Third Party Advisory
https://access.redhat.com/security/cve/cve-2019-19624
More from Opencv
9.8
CVE-2025-53644
OpenCV is an Open Source Computer Vision Library
8.8
CVE-2019-5064
An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, before version 4.2.0
8.8
CVE-2019-5063
An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV 4.1.0
8.8
CVE-2017-1000450
In opencv/modules/imgcodecs/src/utils.cpp, functions FillUniColor and FillUniGray do not check the input length, which can lead to integer overflow
8.8
CVE-2017-12864
In opencv/modules/imgcodecs/src/grfmt_pxm.cpp, function ReadNumber did not checkout the input length, which lead to integer overflow