CVE-2021-29118 : Security Advisory and Response
Discover the details of CVE-2021-29118, an out-of-bounds read vulnerability in Esri ArcReader versions < 10.8.2, allowing unauthorized data disclosure. Learn about the impact, affected systems, and mitigation steps.
A detailed article outlining the CVE-2021-29118 vulnerability in Esri ArcReader, affecting x86 Windows platforms.
Understanding CVE-2021-29118
This CVE describes an out-of-bounds read vulnerability in Esri ArcReader versions prior to 10.8.2, potentially leading to information disclosure attacks.
What is CVE-2021-29118?
CVE-2021-29118 is a security flaw in Esri ArcReader 10.8.1 and earlier versions that allows an unauthenticated attacker to trigger information disclosure by exploiting a specially crafted file.
The Impact of CVE-2021-29118
The vulnerability could enable attackers to access sensitive information by inducing an out-of-bounds read issue within the context of the user, posing a risk to data confidentiality.
Technical Details of CVE-2021-29118
Explore the specifics of the vulnerability to better understand its implications on affected systems.
Vulnerability Description
The vulnerability arises during the parsing of malicious files, allowing an attacker to read beyond the allocated memory boundaries, potentially leaking sensitive data.
Affected Systems and Versions
Esri ArcReader versions up to 10.8.1 on x86 Windows platforms are susceptible to this vulnerability, particularly impacting users of the affected versions.
Exploitation Mechanism
Attackers leveraging this vulnerability can craft malicious files to trigger out-of-bounds reads, exploiting the flaw to gain unauthorized access to sensitive data.
Mitigation and Prevention
Learn the necessary steps to mitigate the risks associated with CVE-2021-29118 and prevent potential exploits.
Immediate Steps to Take
Users are advised to update Esri ArcReader to version 10.8.2 or newer to address the vulnerability and enhance the security posture of their systems.
Long-Term Security Practices
Implementing secure file validation mechanisms and regular security updates can fortify defenses against similar vulnerabilities in the future.
Patching and Updates
Stay informed about security patches and updates provided by Esri to promptly apply fixes and reduce the likelihood of successful exploitation of known vulnerabilities.