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» GHSA-x3rm-644h-67m8
Description
OpenCV 4.1.1 has an out-of-bounds read in hal_baseline::v_load in core/hal/intrin_sse.hpp when called from computeSSDMeanNorm in modules/video/src/dis_flow.cpp.
Basic information
Type
reviewed
Severity
medium Advisory on GitHub
Open advisory ↗ Repository advisory
—
Source code
Browse source ↗ Published (advisory)
2021-10-12 22:22:05 UTC
Updated
2023-02-01 05:06:27 UTC
GitHub reviewed
2021-10-06 20:21:31 UTC
NVD published
2019-09-11
EPSS Score
Score
Percentile
0.15%
36.02%
CVSS Scores
Base score
Version
Severity
Vector
5.3
3.1
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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
CWEs
CWE id
Name
CWE-125
Out-of-bounds Read
Affected packages (4)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
pip
opencv-python <= 4.1.1.26
4.1.2.30
—
pip
opencv-python-headless <= 4.1.1.26
4.1.2.30
—
pip
opencv-contrib-python <= 4.1.1.26
4.1.2.30
—
pip
opencv-contrib-python-headless <= 4.1.1.26
4.1.2.30
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cvelogic
Threat Intelligence