CVE-2021-30940 : What You Need to Know
Learn about CVE-2021-30940, an Apple security vulnerability allowing memory exposure through crafted USD files. Discover impact, affected systems, and Apple's mitigation steps.
A buffer overflow issue affecting iOS, iPadOS, and macOS devices has been identified and addressed by Apple. The vulnerability allows malicious USD files to disclose memory contents, but Apple has released updates to mitigate the risk.
Understanding CVE-2021-30940
This CVE, allocated to Apple, addresses a buffer overflow vulnerability that could be exploited through crafted USD files to leak memory data on affected devices.
What is CVE-2021-30940?
The vulnerability allows a specially crafted USD file to trigger a buffer overflow, resulting in the exposure of sensitive memory contents on devices running iOS, iPadOS, and macOS.
The Impact of CVE-2021-30940
If successfully exploited by an attacker, this vulnerability could lead to the disclosure of sensitive information stored in the memory of the affected Apple devices, compromising user privacy and system integrity.
Technical Details of CVE-2021-30940
Apple has released updates to patch the CVE-2021-30940 vulnerability in the following affected systems and versions.
Vulnerability Description
A buffer overflow issue was identified, allowing the processing of a malicious USD file to reveal memory contents on devices running certain iOS, iPadOS, and macOS versions.
Affected Systems and Versions
- iOS and iPadOS versions less than 15.2
- macOS versions less than 12.1 and 11.6
Exploitation Mechanism
The vulnerability can be exploited by processing a specially crafted USD file, triggering a buffer overflow that may lead to memory disclosure on vulnerable devices.
Mitigation and Prevention
Apple recommends immediate actions and long-term security practices to safeguard devices against CVE-2021-30940.
Immediate Steps to Take
Users should update their iOS, iPadOS, and macOS devices to the latest versions to prevent exploitation of the vulnerability.
Long-Term Security Practices
Regularly update devices to the latest software versions, avoid downloading files from untrusted sources, and follow best security practices to mitigate similar risks in the future.
Patching and Updates
Apple has released security updates for macOS Monterey 12.1, iOS 15.2, iPadOS 15.2, macOS Big Sur 11.6.2, and Security Update 2021-008 Catalina to address the CVE-2021-30940 vulnerability, ensuring enhanced memory handling and protection against malicious USD files.