CVE-2021-0657 : Vulnerability Insights and Analysis

This CVE-2021-0657 involves a possible out-of-bounds write vulnerability in apusys, leading to a stack-based buffer overflow. The vulnerability could allow a local attacker to escalate privileges without requiring user interaction.

Understanding CVE-2021-0657

This section provides insights into the impact, technical details, and mitigation strategies related to CVE-2021-0657.

What is CVE-2021-0657?

The CVE-2021-0657 vulnerability in apusys potentially enables local attackers to achieve privilege escalation by exploiting a stack-based buffer overflow without user interaction.

The Impact of CVE-2021-0657

The impact of this vulnerability is the escalation of privilege to execute System-level commands, creating a security risk for affected systems.

Technical Details of CVE-2021-0657

This section outlines the specifics of the vulnerability, including affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from an out-of-bounds write issue in apusys, resulting in a stack-based buffer overflow and enabling local privilege escalation.

Affected Systems and Versions

The vulnerability affects a range of MediaTek products including MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, and MT8797 running Android 10.0.

Exploitation Mechanism

Exploiting this vulnerability does not require user interaction, making it easier for local attackers to execute malicious activities.

Mitigation and Prevention

This section provides guidance on immediate steps and long-term security practices to mitigate the risks associated with CVE-2021-0657.

Immediate Steps to Take

Users and administrators are advised to apply patches promptly, specifically Patch ID ALPS05672103, to prevent exploitation of the vulnerability.

Long-Term Security Practices

Implementing strict access controls, regular security updates, and robust monitoring can help mitigate similar privilege escalation risks in the future.

Patching and Updates

Continuously monitor for security advisories from MediaTek and apply necessary patches to safeguard systems against potential exploitation.