Vulnerabilities > CVE-2019-19624 - Out-of-bounds Read vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
NONE Availability impact
LOW Summary
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.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.
References
- https://access.redhat.com/security/cve/cve-2019-19624
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
- https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
- https://github.com/opencv/opencv/issues/14554
- https://github.com/opencv/opencv/issues/14554