CVE-2021-1885 : What You Need to Know
Discover the impact of CVE-2021-1885, an out-of-bounds read vulnerability in Apple's iOS, iPadOS, tvOS, watchOS, and macOS, allowing arbitrary code execution via malicious image files. Learn how to mitigate the risk.
An out-of-bounds read vulnerability affecting Apple's iOS, iPadOS, tvOS, watchOS, and macOS has been identified and addressed. This vulnerability could be exploited through a maliciously crafted image, leading to arbitrary code execution.
Understanding CVE-2021-1885
This section provides insights into the nature and impact of the CVE-2021-1885 vulnerability.
What is CVE-2021-1885?
The CVE-2021-1885 vulnerability is related to an out-of-bounds read issue that was mitigated by enhancing bounds checking. It specifically affects devices running iOS, iPadOS, tvOS, watchOS, and macOS.
The Impact of CVE-2021-1885
The impact of CVE-2021-1885 is significant as it could allow threat actors to execute arbitrary code by exploiting the vulnerability through specially crafted images.
Technical Details of CVE-2021-1885
In this section, you will find technical details about the vulnerability, including affected systems, exploitation methods, and more.
Vulnerability Description
The vulnerability stems from inadequate bounds checking during image processing routines, potentially leading to out-of-bounds read access and subsequent code execution.
Affected Systems and Versions
The vulnerability affects iOS, iPadOS, tvOS, watchOS, and macOS versions less than 14.5, 14.5, 14.5, 7.4, and 11.3 respectively.
Exploitation Mechanism
Threat actors can exploit this vulnerability by executing specially crafted image files on vulnerable Apple devices, triggering the out-of-bounds read condition.
Mitigation and Prevention
This section outlines the steps users and organizations can take to mitigate the risks associated with CVE-2021-1885 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update their devices to the latest versions of iOS, iPadOS, tvOS, watchOS, and macOS to eliminate the vulnerability and enhance security.
Long-Term Security Practices
In the long term, maintaining regular software updates, deploying security patches promptly, and exercising caution while handling untrusted image files can help prevent similar vulnerabilities.
Patching and Updates
Apple has released patches addressing CVE-2021-1885 in macOS Big Sur 11.3, iOS 14.5, iPadOS 14.5, watchOS 7.4, and tvOS 14.5. Users should apply these updates immediately to safeguard their devices against potential exploitation.