CVE-2023-21592 : Vulnerability Insights and Analysis

This CVE record pertains to an Adobe InDesign Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability that was published on January 13, 2023. The vulnerability affects Adobe InDesign versions 18.0 and earlier, as well as 17.4 and earlier, potentially leading to the disclosure of sensitive memory.

Understanding CVE-2023-21592

This section delves into the details of the CVE-2023-21592 vulnerability, outlining what it entails and its potential impacts.

What is CVE-2023-21592?

CVE-2023-21592 is an out-of-bounds read vulnerability in Adobe InDesign versions 18.0 and 17.4, allowing attackers to potentially access sensitive memory. Exploiting this vulnerability might enable bypassing mitigations like ASLR, requiring user interaction through the opening of a malicious file.

The Impact of CVE-2023-21592

The impact of CVE-2023-21592 includes a high confidentiality impact, as attackers could gain access to sensitive information within affected systems. While the integrity and availability impacts are none, the disclosure of sensitive memory poses a significant risk to affected users.

Technical Details of CVE-2023-21592

This section provides insights into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability involves an out-of-bounds read, specifically categorized as CWE-125, which enables unauthorized access to memory that could potentially contain confidential data.

Affected Systems and Versions

Adobe InDesign versions 18.0 and earlier, as well as 17.4 and earlier, are confirmed to be impacted by this vulnerability, leaving them susceptible to exploitation.

Exploitation Mechanism

Exploiting CVE-2023-21592 requires user interaction, where a victim needs to open a malicious file containing the exploit, allowing the attacker to leverage the out-of-bounds read vulnerability.

Mitigation and Prevention

In this section, strategies to mitigate and prevent the exploitation of CVE-2023-21592 are outlined.

Immediate Steps to Take

For immediate protection, users are advised to exercise caution when opening files from untrusted or unknown sources. Additionally, staying informed about security updates from Adobe is crucial.

Long-Term Security Practices

Implementing robust security measures such as network segmentation, regular security audits, and user awareness training can enhance long-term defense against potential vulnerabilities.

Patching and Updates

Users of Adobe InDesign versions 18.0 and 17.4 should apply security updates provided by Adobe promptly to address the vulnerability and strengthen the security posture of the affected systems.