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CVE-2018-5268

CVE-2018-5268:
Out-of-bounds Write in OpenCV.

5.5

CVSS Score
3.0

Basic Information

CVE ID
CVE-2018-5268
GHSA ID
GHSA-9g8h-pjm4-q92p
EPSS Score
0.54575%
CWE
CWE-787
Published
10/12/2021
Updated
2/1/2023
KEV Status
No
Technology
TechnologyPython

Technical Details

CVSS Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Package NameEcosystemVulnerable VersionsFirst Patched Version
opencv-pythonpip<= 3.3.1.113.4.1.15
opencv-contrib-pythonpip<= 3.3.1.113.4.1.15

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The CVE description explicitly names cv::Jpeg2KDecoder::readComponent8u as the vulnerable function. The GitHub issue (#10541) shows an ASAN trace pointing to line 343 of grfmt_jpeg2000.cpp during the overflow. The patch (435a3e3) adds validation checks (CV_Assert) for component parameters like xstart=0, ystart=0, step=1, and data type consistency - all of which were missing in the original code. These missing checks allowed out-of-bounds writes when processing malformed images.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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