CVE-2020-10757 : Vulnerability Insights and Analysis

A flaw in the Linux Kernel post version 4.5-rc1 allows local attackers to escalate privileges through DAX Huge Pages handling.

Understanding CVE-2020-10757

A vulnerability in the Linux Kernel post version 4.5-rc1 enables local attackers to elevate privileges by exploiting DAX Huge Pages handling.

What is CVE-2020-10757?

This CVE identifies a flaw in the Linux Kernel after version 4.5-rc1 related to the mremap function's handling of DAX Huge Pages, allowing local attackers with DAX enabled storage to escalate their privileges on the system.

The Impact of CVE-2020-10757

The vulnerability permits local attackers to gain elevated privileges on the system by exploiting the way mremap handles DAX Huge Pages in the Linux Kernel post version 4.5-rc1.

Technical Details of CVE-2020-10757

This section provides technical insights into the CVE-2020-10757 vulnerability.

Vulnerability Description

The flaw in the Linux Kernel post version 4.5-rc1 lies in the mremap function's handling of DAX Huge Pages, allowing local attackers to escalate their privileges.

Affected Systems and Versions

Product: Kernel
Vendor: n/a
Versions affected: All versions after 4.5-rc1

Exploitation Mechanism

The vulnerability can be exploited by local attackers with access to DAX enabled storage to escalate their privileges on the system.

Mitigation and Prevention

Protect your systems from CVE-2020-10757 with these mitigation strategies.

Immediate Steps to Take

Apply relevant security patches promptly
Monitor and restrict access to DAX enabled storage
Implement the principle of least privilege

Long-Term Security Practices

Regularly update and patch the Linux Kernel
Conduct security training for system administrators
Implement strong access controls and monitoring mechanisms

Patching and Updates

Ensure timely installation of security patches and updates to mitigate the risk posed by CVE-2020-10757.