CVE-2023-38853 : Security Advisory and Response
CVE-2023-38853 refers to a critical Buffer Overflow vulnerability in libxlsv.1.6.2. Learn about its impact, affected systems, exploitation, and mitigation steps.
A Buffer Overflow vulnerability in libxlsv.1.6.2 could allow a remote attacker to execute arbitrary code and cause a denial of service by exploiting a crafted XLS file.
Understanding CVE-2023-38853
This section provides details on the nature of the vulnerability and its potential impact.
What is CVE-2023-38853?
The CVE-2023-38853 refers to a Buffer Overflow vulnerability present in libxlsv.1.6.2. This vulnerability enables a remote attacker to execute arbitrary code and disrupt services using a maliciously crafted XLS file.
The Impact of CVE-2023-38853
The impact of this vulnerability is severe as it allows attackers to remotely run unauthorized code on the affected system. Moreover, it facilitates a denial of service by crashing the system using a specially crafted XLS file.
Technical Details of CVE-2023-38853
Explore the technical aspects of the CVE-2023-38853 vulnerability to understand its implications better.
Vulnerability Description
The vulnerability arises due to improper handling of data in the xls_parseWorkBook function in xls.c, leading to a Buffer Overflow condition when processing XLS files.
Affected Systems and Versions
All systems using libxlsv version 1.6.2 are affected by this vulnerability, rendering them susceptible to remote code execution and service disruption.
Exploitation Mechanism
The exploit involves sending a specially crafted XLS file to the vulnerable system, triggering the Buffer Overflow condition and allowing the attacker to execute arbitrary code remotely.
Mitigation and Prevention
Learn about the necessary steps to mitigate the risks associated with CVE-2023-38853.
Immediate Steps to Take
It is crucial to update libxlsv to a patched version to prevent exploitation. Additionally, exercise caution when handling XLS files, especially from untrusted sources.
Long-Term Security Practices
Implement secure coding practices, perform regular security assessments, and stay updated on vulnerability disclosures to enhance overall system security.
Patching and Updates
Stay informed about security patches released by the libxlsv maintainers and promptly apply them to eliminate the Buffer Overflow vulnerability from the system.