Integer Overflow or Wraparound in OpenCV.

Description

In opencv/modules/imgcodecs/src/utils.cpp, functions FillUniColor and FillUniGray do not check the input length, which can lead to integer overflow. If the image is from remote, may lead to remote code execution or denial of service. This affects Opencv 3.3 (corresponding with OpenCV-Python 3.3.0.9) and earlier.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
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Repository advisory
Source code
Browse source ↗
Published (advisory)
2021-10-12 22:03:32 UTC
Updated
2023-02-01 05:06:21 UTC
GitHub reviewed
2021-10-07 20:09:22 UTC
NVD published
2018-01-02

EPSS Score

Score Percentile
3.51% 87.51%

CVSS Scores

Base score Version Severity Vector
8.8 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H 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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.

Identifiers

CWEs

CWE id Name
CWE-190 Integer Overflow or Wraparound

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
pip opencv-python <= 3.3.0.9 3.3.1.11
pip opencv-contrib-python <= 3.3.0.9 3.3.1.11

References

cvelogic Threat Intelligence