CVE-2023-21100 : What You Need to Know

This CVE record highlights a vulnerability identified in the inflate component of inflate.c, which could potentially lead to an out-of-bounds write resulting from a heap buffer overflow. The exploitation of this vulnerability could enable local escalation of privilege without requiring any additional execution privileges. Notably, user interaction is not necessary for exploitation.

Understanding CVE-2023-21100

This section delves deeper into the nature and impact of CVE-2023-21100.

What is CVE-2023-21100?

CVE-2023-21100 is a security flaw found in the inflate component of inflate.c, presenting a risk of heap buffer overflow leading to a possible out-of-bounds write. The exploitation of this vulnerability could allow attackers to escalate privileges locally without the need for extra execution privileges.

The Impact of CVE-2023-21100

The impact of CVE-2023-21100 could have severe consequences, as it opens up the potential for threat actors to manipulate the affected system, ultimately leading to the escalation of privileges without the reliance on user interaction.

Technical Details of CVE-2023-21100

In this section, we explore the technical aspects surrounding CVE-2023-21100.

Vulnerability Description

The vulnerability in inflate.c can result in a heap buffer overflow, potentially causing an out-of-bounds write scenario. This could be exploited by malicious entities to locally escalate privileges.

Affected Systems and Versions

The issue affects the following versions of Android: Android-12, Android-12L, and Android-13. Systems running these versions are vulnerable to the CVE-2023-21100 security flaw.

Exploitation Mechanism

The vulnerability can be exploited by triggering a heap buffer overflow in the inflate component of inflate.c, leading to unauthorized out-of-bounds write actions that could facilitate privilege escalation.

Mitigation and Prevention

Here, we discuss the necessary steps to mitigate and prevent the exploitation of CVE-2023-21100.

Immediate Steps to Take

To mitigate the risk associated with CVE-2023-21100, it is imperative to apply security patches promptly. Additionally, monitoring for any unusual activities or unauthorized access attempts can help in early detection and mitigation.

Long-Term Security Practices

Implementing robust security protocols, conducting regular security audits, and educating users about security best practices can contribute to long-term mitigation of vulnerabilities like CVE-2023-21100.

Patching and Updates

Regularly updating the affected systems with the latest security patches provided by the vendor is crucial to address vulnerabilities like CVE-2023-21100. Keeping systems up to date helps in fortifying defense mechanisms against potential threats.