CVE-2018-1056 Explained : Impact and Mitigation

A vulnerability has been discovered in advancecomp prior to version 2.1-2018/02, where the handling of ZIP files resulted in an out-of-bounds heap buffer read issue. Exploiting this flaw, an attacker can cause the advzip utility to crash by sending specially crafted ZIP files for processing.

Understanding CVE-2018-1056

An out-of-bounds heap buffer read flaw was found in the way advancecomp before 2.1-2018/02 handled processing of ZIP files. An attacker could potentially use this flaw to crash the advzip utility by tricking it into processing crafted ZIP files.

What is CVE-2018-1056?

Vulnerability found in advancecomp prior to version 2.1-2018/02
Involves out-of-bounds heap buffer read issue in ZIP file handling
Allows attackers to crash advzip utility with specially crafted ZIP files

The Impact of CVE-2018-1056

CVSS Score: 3.3 (Low)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Availability Impact: Low
Confidentiality Impact: None
Integrity Impact: None
Scope: Unchanged

Technical Details of CVE-2018-1056

Vulnerability Description

The vulnerability in advancecomp allows for an out-of-bounds heap buffer read issue during ZIP file processing, leading to a potential crash of the advzip utility.

Affected Systems and Versions

Product: advancecomp
Vendor: amadvance
Versions Affected: 2.1-2018/02

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted ZIP files to the advzip utility, triggering the out-of-bounds heap buffer read issue.

Mitigation and Prevention

Immediate Steps to Take

Update advancecomp to version 2.1-2018/02 or later
Avoid processing ZIP files from untrusted sources

Long-Term Security Practices

Regularly update software and apply security patches
Conduct security training to raise awareness of file handling best practices

Patching and Updates

Refer to vendor advisories for patching instructions and updates