CVE-2020-23915 : What You Need to Know

An issue was discovered in cpp-peglib through v0.1.12. peg::resolve_escape_sequence() in peglib.h has a heap-based buffer over-read.

Understanding CVE-2020-23915

What is CVE-2020-23915?

CVE-2020-23915 is a vulnerability found in cpp-peglib through version 0.1.12, specifically in the peg::resolve_escape_sequence() function in peglib.h. This vulnerability leads to a heap-based buffer over-read.

The Impact of CVE-2020-23915

This vulnerability could potentially be exploited by attackers to read sensitive information from the heap, leading to a security breach or information leakage.

Technical Details of CVE-2020-23915

Vulnerability Description

The issue in cpp-peglib allows for a heap-based buffer over-read due to a flaw in the peg::resolve_escape_sequence() function.

Affected Systems and Versions

Product: cpp-peglib
Vendor: N/A
Versions affected: up to v0.1.12

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input that triggers the heap-based buffer over-read, potentially leading to unauthorized access to sensitive data.

Mitigation and Prevention

Immediate Steps to Take

Update cpp-peglib to a version that includes a patch addressing the heap-based buffer over-read vulnerability.
Monitor for any unusual activities that could indicate exploitation of this vulnerability.

Long-Term Security Practices

Regularly update software and libraries to ensure that known vulnerabilities are patched promptly.
Implement secure coding practices to prevent buffer over-read vulnerabilities in the future.

Patching and Updates

Ensure that all systems running cpp-peglib are regularly updated with the latest patches and security fixes to mitigate the risk of exploitation.