CVE-2018-20460 : What You Need to Know

A vulnerability in the parseOperands function of radare2 prior to version 3.1.2 can lead to a denial-of-service condition through a stack-based buffer overflow.

Understanding CVE-2018-20460

This CVE identifies a vulnerability in radare2 that could allow attackers to crash applications by exploiting a buffer overflow.

What is CVE-2018-20460?

The vulnerability in the parseOperands function of radare2 prior to version 3.1.2 allows attackers to trigger a denial-of-service condition by manipulating a specially crafted input file.

The Impact of CVE-2018-20460

The exploitation of this vulnerability can lead to a denial-of-service condition, causing an application crash. Attackers can achieve this by triggering a stack-based buffer overflow.

Technical Details of CVE-2018-20460

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is located in the parseOperands function within the armass64.c file in the libr/asm/arch/arm directory of radare2 prior to version 3.1.2. It enables a stack-based buffer overflow.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Prior to radare2 version 3.1.2

Exploitation Mechanism

The vulnerability can be exploited by manipulating a specially crafted input file, triggering a stack-based buffer overflow.

Mitigation and Prevention

Protecting systems from CVE-2018-20460 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update radare2 to version 3.1.2 or newer to mitigate the vulnerability.
Avoid opening untrusted or suspicious files with radare2.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement input validation mechanisms to prevent buffer overflows.

Patching and Updates

Ensure timely patching of radare2 to the latest version to address the vulnerability.