CVE-2017-12863 : Security Advisory and Response

Opencv vulnerability in function PxMDecoder::readData

Understanding CVE-2017-12863

This CVE involves an integer overflow issue in the calculation of src_pitch in the function PxMDecoder::readData within opencv/modules/imgcodecs/src/grfmt_pxm.cpp. The vulnerability affects Opencv 3.3 and earlier versions, potentially leading to remote code execution or denial of service.

What is CVE-2017-12863?

The function PxMDecoder::readData in Opencv experiences an integer overflow issue during the calculation of src_pitch. If the image originates from a remote source, it could potentially result in remote code execution or denial of service.

The Impact of CVE-2017-12863

This vulnerability impacts Opencv 3.3 and versions prior to it. Exploitation of this vulnerability could lead to remote code execution or denial of service.

Technical Details of CVE-2017-12863

The technical details of this CVE are as follows:

Vulnerability Description

The vulnerability arises from an integer overflow in the calculation of src_pitch in the PxMDecoder::readData function.

Affected Systems and Versions

Opencv 3.3 and versions earlier than 3.3 are affected by this vulnerability.

Exploitation Mechanism

If an image from a remote source triggers this vulnerability, it may result in remote code execution or denial of service.

Mitigation and Prevention

To address CVE-2017-12863, consider the following steps:

Immediate Steps to Take

Update Opencv to a patched version that addresses the integer overflow issue.
Avoid processing images from untrusted or remote sources.

Long-Term Security Practices

Regularly update software and libraries to mitigate known vulnerabilities.
Implement network security measures to prevent unauthorized access to systems.

Patching and Updates

Ensure that Opencv is regularly updated with the latest security patches to prevent exploitation of this vulnerability.