CVE-2019-12865 : What You Need to Know

A vulnerability in radare2 versions 3.5.1 and below can lead to a double free issue in the cmd_mount function, specifically affecting the ms command.

Understanding CVE-2019-12865

From radare2 version 3.5.1 and below, there is a double free issue in the cmd_mount function located in libr/core/cmd_mount.c. This issue specifically occurs with the ms command.

What is CVE-2019-12865?

CVE-2019-12865 is a vulnerability in radare2 versions 3.5.1 and below that allows for a double free issue in the cmd_mount function, particularly impacting the ms command.

The Impact of CVE-2019-12865

This vulnerability could be exploited by an attacker to execute arbitrary code or cause a denial of service (DoS) condition on the affected system.

Technical Details of CVE-2019-12865

The following technical details provide insight into the nature of the vulnerability.

Vulnerability Description

The cmd_mount function in radare2's libr/core/cmd_mount.c through version 3.5.1 experiences a double free vulnerability when processing the ms command.

Affected Systems and Versions

Systems running radare2 versions 3.5.1 and below are vulnerable to this issue.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious input to trigger the double free issue in the cmd_mount function, potentially leading to code execution or a DoS condition.

Mitigation and Prevention

To address CVE-2019-12865, the following mitigation strategies and preventive measures can be implemented.

Immediate Steps to Take

Update radare2 to a version that includes a patch for the double free vulnerability.
Monitor for any unusual system behavior that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software and apply patches to mitigate known vulnerabilities.
Conduct security assessments and audits to identify and address potential weaknesses in the system.

Patching and Updates

Stay informed about security advisories and updates released by radare2 to promptly apply patches that address CVE-2019-12865.