CVE-2022-1507 : Vulnerability Insights and Analysis

chafa: NULL Pointer Dereference vulnerability in function gif_internal_decode_frame at libnsgif.c:599 in hpjansson/chafa software prior to version 1.10.2 allows attackers to execute a denial of service (crash) through a specially crafted input file.

Understanding CVE-2022-1507

This CVE refers to a vulnerability in the hpjansson/chafa software that could be exploited by attackers to cause a denial of service via a crafted file.

What is CVE-2022-1507?

The CVE-2022-1507 is a NULL Pointer Dereference vulnerability present in the function gif_internal_decode_frame at libnsgif.c:599 in the hpjansson/chafa software. Attackers can exploit this issue to crash the system.

The Impact of CVE-2022-1507

The impact of this vulnerability is rated as MEDIUM with a CVSS base score of 5.5. It has a low attack complexity and requires local access. Although it does not affect confidentiality or integrity, it can lead to a denial of service with high availability impact.

Technical Details of CVE-2022-1507

This section outlines the technical details of the CVE.

Vulnerability Description

The vulnerability exists in the gif_internal_decode_frame function at libnsgif.c:599, enabling attackers to trigger a denial of service by providing a malicious file input.

Affected Systems and Versions

Systems running hpjansson/chafa software versions earlier than 1.10.2 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability through a specially crafted file input to trigger a NULL Pointer Dereference and crash the service.

Mitigation and Prevention

To protect your systems against CVE-2022-1507, consider the following mitigation strategies.

Immediate Steps to Take

Update hpjansson/chafa software to version 1.10.2 or later to eliminate the vulnerability.
Avoid opening files from untrusted or unknown sources to prevent exploitation.

Long-Term Security Practices

Implement regular security patches and updates for all software components.
Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and updates from hpjansson to apply patches promptly and ensure the security of your systems.