CVE-2017-5978 : Security Advisory and Response

This CVE-2017-5978 article provides insights into a vulnerability in zziplib 0.13.62 that allows a crafted ZIP file to trigger a denial of service by causing an out-of-bounds read in the zzip_mem_entry_new function of memdisk.c.

Understanding CVE-2017-5978

This section delves into the impact and technical details of CVE-2017-5978.

What is CVE-2017-5978?

The vulnerability in zziplib 0.13.62 enables remote attackers to execute a denial of service attack by exploiting an out-of-bounds read and causing a crash through a specially crafted ZIP file.

The Impact of CVE-2017-5978

The vulnerability can lead to a denial of service (crash) by triggering an out-of-bounds read in the zzip_mem_entry_new function of memdisk.c in zziplib 0.13.62.

Technical Details of CVE-2017-5978

This section provides a detailed overview of the technical aspects of CVE-2017-5978.

Vulnerability Description

The zzip_mem_entry_new function in memdisk.c in zziplib 0.13.62 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted ZIP file.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Version: 0.13.62

Exploitation Mechanism

The vulnerability is exploited by crafting a malicious ZIP file that triggers an out-of-bounds read in the zzip_mem_entry_new function of memdisk.c.

Mitigation and Prevention

In this section, you will find steps to mitigate and prevent the CVE-2017-5978 vulnerability.

Immediate Steps to Take

Apply vendor patches or updates promptly.
Avoid opening ZIP files from untrusted sources.

Long-Term Security Practices

Regularly update software and systems to the latest versions.
Implement network security measures to detect and block malicious ZIP files.

Patching and Updates

Ensure that zziplib is updated to a version that addresses the vulnerability to prevent exploitation.