CVE-2020-36278 : Security Advisory and Response

Leptonica before 1.80.0 allows a heap-based buffer over-read in findNextBorderPixel in ccbord.c.

Understanding CVE-2020-36278

Leptonica vulnerability with a heap-based buffer over-read.

What is CVE-2020-36278?

CVE-2020-36278 is a vulnerability in Leptonica before version 1.80.0 that enables a heap-based buffer over-read in the findNextBorderPixel function in ccbord.c.

The Impact of CVE-2020-36278

This vulnerability could potentially be exploited by attackers to read sensitive information from the heap memory, leading to information disclosure or possibly further exploitation.

Technical Details of CVE-2020-36278

Leptonica vulnerability technical specifics.

Vulnerability Description

The vulnerability in Leptonica before 1.80.0 allows a heap-based buffer over-read in the findNextBorderPixel function in ccbord.c.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to trigger a heap-based buffer over-read, potentially leading to information disclosure.

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2020-36278.

Immediate Steps to Take

Update Leptonica to version 1.80.0 or later to address the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement secure coding practices to prevent buffer over-read vulnerabilities.

Patching and Updates

Apply patches provided by Leptonica promptly to fix the vulnerability and enhance system security.