Out-of-bounds Read in Opencv
CVE-2019-19624
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.
EPSS exploit prediction
EPSS: 0.018 (77.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Opencv
- Red Hat Enterprise Linux — versions 8.0
Weakness classification (CWE)
References
- github.com/opencv/opencv/issues/14554 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418 (Patch, Third Party Advisory)
- access.redhat.com/security/cve/cve-2019-19624 (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-19624?
- CVE-2019-19624 is a medium-severity vulnerability in Opencv, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2019-12-06.
- How severe is CVE-2019-19624?
- Medium severity. CVSS v3 base score is 6.5 out of 10.