CVE-2018-1000097 : Vulnerability Insights and Analysis

A Buffer Overflow vulnerability in version 4.15.2 of sharutils has been identified, specifically in the unshar command. This flaw could potentially lead to code execution if exploited by an attacker.

Understanding CVE-2018-1000097

This CVE involves a Buffer Overflow vulnerability in the unshar command of sharutils version 4.15.2.

What is CVE-2018-1000097?

The vulnerability is located in the file unshar.c at line 75, within the function looks_like_c_code. It arises due to inadequate buffer checks, allowing an attacker to potentially execute malicious code by tricking a user into running the unshar command on a crafted file.

The Impact of CVE-2018-1000097

Exploitation of this vulnerability could result in unauthorized code execution on the affected system, posing a significant security risk.

Technical Details of CVE-2018-1000097

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The Buffer Overflow vulnerability in sharutils version 4.15.2 occurs in the unshar command due to insufficient buffer validation, enabling potential code execution.

Affected Systems and Versions

Product: sharutils
Vendor: N/A
Version: 4.15.2

Exploitation Mechanism

To exploit this vulnerability, an attacker needs to persuade a user to run the unshar command on a specially crafted file.

Mitigation and Prevention

Protecting systems from CVE-2018-1000097 requires immediate actions and long-term security practices.

Immediate Steps to Take

Avoid running the unshar command on untrusted or suspicious files.
Monitor vendor advisories for patches and updates.

Long-Term Security Practices

Implement robust input validation mechanisms.
Conduct regular security assessments and audits.

Patching and Updates

Apply patches provided by the vendor promptly to address the vulnerability.