CVE-2021-0335 : What You Need to Know

This article provides detailed information about CVE-2021-0335, a vulnerability in Android-11 that could lead to remote information disclosure without requiring additional execution privileges.

Understanding CVE-2021-0335

CVE-2021-0335 is a vulnerability in the process of C2SoftHevcDec.cpp in Android-11 that allows for a potential out-of-bounds write due to a use-after-free scenario. This vulnerability could be exploited for remote information disclosure.

What is CVE-2021-0335?

The vulnerability in C2SoftHevcDec.cpp in Android-11 may result in remote information disclosure without the need for extra execution privileges, requiring user interaction for exploitation.

The Impact of CVE-2021-0335

CVE-2021-0335 could potentially lead to a scenario where remote attackers gain access to sensitive information without requiring advanced permissions, posing a risk to user privacy and data security.

Technical Details of CVE-2021-0335

The technical details of CVE-2021-0335 include information on the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability involves a possible out-of-bounds write triggered by a use-after-free condition in the C2SoftHevcDec.cpp process, potentially leading to remote information disclosure.

Affected Systems and Versions

This vulnerability affects systems running Android-11, specifically exposing devices using this version to the risk of remote information disclosure.

Exploitation Mechanism

Exploiting CVE-2021-0335 requires user interaction, where an attacker could leverage the out-of-bounds write to gain unauthorized access to sensitive information remotely.

Mitigation and Prevention

To address CVE-2021-0335, immediate steps need to be taken to secure affected systems and implement long-term security measures, including regular patching and updates.

Immediate Steps to Take

Users are advised to apply relevant security patches provided by the vendor to mitigate the risk of exploitation through CVE-2021-0335.

Long-Term Security Practices

Implementing robust security practices, such as restricting unnecessary permissions and staying updated on security advisories, can help prevent potential vulnerabilities like CVE-2021-0335.

Patching and Updates

Regularly updating the software and firmware on devices, especially with security patches released by the vendor, is essential to protect against known vulnerabilities like CVE-2021-0335.