CVE-2018-12035 : What You Need to Know

YARA versions 3.7.1 and earlier are affected by an out of bounds write vulnerability in the yr_execute_code function in libyara/exec.c when processing specially crafted compiled rule files.

Understanding CVE-2018-12035

This CVE involves a vulnerability in YARA versions 3.7.1 and prior that can be exploited through a specific type of compiled rule file.

What is CVE-2018-12035?

An out of bounds write vulnerability can be triggered in yr_execute_code function in libyara/exec.c when parsing a specifically crafted compiled rule file in YARA versions 3.7.1 and earlier.

The Impact of CVE-2018-12035

The vulnerability allows for potential unauthorized access and manipulation of data, posing a security risk to systems running affected YARA versions.

Technical Details of CVE-2018-12035

YARA versions 3.7.1 and earlier are susceptible to exploitation due to the following details:

Vulnerability Description

Parsing a specially crafted compiled rule file can cause an out of bounds write vulnerability in yr_execute_code in libyara/exec.c.

Affected Systems and Versions

YARA versions 3.7.1 and earlier

Exploitation Mechanism

The vulnerability is triggered when processing a specifically crafted compiled rule file.

Mitigation and Prevention

To address CVE-2018-12035, consider the following steps:

Immediate Steps to Take

Update YARA to a patched version that addresses the vulnerability.
Monitor for any unusual activities on systems running affected YARA versions.

Long-Term Security Practices

Regularly update software and security patches to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential breaches.

Patching and Updates

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