CVE-2018-10186 Explained : Impact and Mitigation

Radare2 version 2.5.0 is affected by a heap-based buffer over-read vulnerability in the r_hex_bin2str function, potentially leading to a denial of service via a crafted DEX file.

Understanding CVE-2018-10186

This CVE involves a specific vulnerability in the radare2 software version 2.5.0.

What is CVE-2018-10186?

The r_hex_bin2str function in radare2 2.5.0 has a heap-based buffer over-read vulnerability that could be exploited by remote attackers to trigger a denial of service using a specially crafted DEX file.

The Impact of CVE-2018-10186

If successfully exploited, this vulnerability could result in a denial of service attack on systems running the affected radare2 version.

Technical Details of CVE-2018-10186

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in the r_hex_bin2str function within the libr/util/hex.c file of radare2 2.5.0, allowing remote attackers to perform a heap-based buffer over-read.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 2.5.0 (affected)

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by utilizing a specially crafted DEX file to trigger the heap-based buffer over-read.

Mitigation and Prevention

Protecting systems from CVE-2018-10186 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update radare2 to a patched version that addresses the heap-based buffer over-read vulnerability.
Implement network security measures to prevent remote exploitation.

Long-Term Security Practices

Regularly monitor and update software to mitigate potential vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.