Heap Overflow Vulnerability in Linux Kernel HFS+ File System

CVE-2025-0927

What is CVE-2025-0927?

CVE-2025-0927 is a heap overflow vulnerability affecting the HFS+ file system implementation in the Linux Kernel, specifically from the vendor Canonical. This vulnerability can be exploited when an attacker mounts a specially crafted file system image, leading to a denial of service or potentially allowing the execution of arbitrary code. Organizations utilizing affected Linux systems are at risk, as this vulnerability could lead to system crashes or unauthorized access to system resources, negatively affecting operations and data integrity.

Technical Details

The vulnerability occurs within the implementation of the HFS+ file system in the Linux Kernel. A heap overflow typically happens when more data is written to a heap-allocated buffer than it can hold, which may corrupt adjacent memory and enable an attacker to manipulate program execution. In this case, the vulnerability can be triggered by crafting a malformed file system image that, when processed, may lead to unpredictable behavior of the operating system.

Potential impact of CVE-2025-0927

1. Denial of Service (DoS): The vulnerability may result in system crashes when a malicious file system image is mounted, leading to significant downtime and disruptions in services.

2. Arbitrary Code Execution: If exploited successfully, an attacker could potentially execute arbitrary code, which may allow them to gain unauthorized control over the affected system, leading to a compromise of sensitive data.

3. Data Integrity Risks: Exploitation of this vulnerability could lead to system instability and unintended modification or loss of data, posing risks to data integrity and reliability of the systems utilizing the affected file system.

News Articles

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