CVE-2021-0563 : Security Advisory and Response
Learn about CVE-2021-0563, a critical Android-11 vulnerability leading to potential local information disclosure. Find out its impact, affected systems, and mitigation steps.
This CVE-2021-0563 article provides insights into a vulnerability found in Android-11 that could lead to local information disclosure without needing additional execution privileges.
Understanding CVE-2021-0563
This section will delve into the nature of the CVE-2021-0563 vulnerability in Android-11.
What is CVE-2021-0563?
The vulnerability lies in 'ih264e_fmt_conv_422i_to_420sp' of 'ih264e_fmt_conv.c', resulting in a heap buffer overflow and potential out-of-bounds read. Exploiting this flaw could allow for local information disclosure, and the exploit does not require user interaction.
The Impact of CVE-2021-0563
The impact of this vulnerability includes the risk of local information disclosure without the need for additional execution permissions, highlighting a critical security concern.
Technical Details of CVE-2021-0563
In this section, the technical aspects of the CVE-2021-0563 vulnerability will be discussed.
Vulnerability Description
The vulnerability stems from a heap buffer overflow in 'ih264e_fmt_conv_422i_to_420sp' in 'ih264e_fmt_conv.c', leading to a possible out-of-bounds read and paving the way for local information disclosure.
Affected Systems and Versions
The impacted system includes Android-11, where this vulnerability has been identified and poses a threat to user data confidentiality.
Exploitation Mechanism
Exploiting this vulnerability does not require any user interaction, making it a potent avenue for malicious actors to gain access to local information.
Mitigation and Prevention
This section will outline critical steps to mitigate the risks posed by CVE-2021-0563 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to stay vigilant and apply security updates promptly to protect their devices from potential exploitation of this vulnerability.
Long-Term Security Practices
Incorporating robust security practices, such as regular software updates and maintaining secure computing habits, can enhance overall protection against such vulnerabilities.
Patching and Updates
Ensuring that devices are up to date with the latest security patches from Android is crucial in mitigating the risk associated with CVE-2021-0563.