| Name | CVE-2019-19624 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| opencv (PTS) | buster | 3.2.0+dfsg-6 | vulnerable |
| bullseye | 4.5.1+dfsg-5 | fixed |
| bookworm | 4.6.0+dfsg-12 | fixed |
| trixie | 4.6.0+dfsg-13 | fixed |
| sid | 4.6.0+dfsg-13.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| opencv | source | jessie | (not affected) | | | |
| opencv | source | stretch | (not affected) | | | |
| opencv | source | (unstable) | 4.1.2+dfsg-3 | | | |
Notes
[buster] - opencv <no-dsa> (Minor issue; can be fixed via point release)
[stretch] - opencv <not-affected> (Vulnerable code introduced later)
[jessie] - opencv <not-affected> (Vulnerable code introduced later)
https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
https://github.com/opencv/opencv/issues/14554