CVE-2023-33036 Explained : Impact and Mitigation
Discover the impact and mitigation strategies for CVE-2023-33036, a high-severity vulnerability affecting various versions of Qualcomm's Snapdragon platform. Learn how to prevent DOS in Hypervisor environments.
A detailed analysis of CVE-2023-33036 focusing on the impact, technical details, and mitigation strategies.
Understanding CVE-2023-33036
Insight into the vulnerability identified as CVE-2023-33036 affecting Qualcomm's Snapdragon platform.
What is CVE-2023-33036?
The CVE-2023-33036 vulnerability involves a Permanent Denial of Service (DOS) in Hypervisor in the presence of an untrusted Virtual Machine (VM) without PSCI support that initiates a PSCI call.
The Impact of CVE-2023-33036
The vulnerability has a base severity score of 7.1 out of 10 with a high impact on availability, posing a risk due to a Permanent DOS scenario in the Hypervisor.
Technical Details of CVE-2023-33036
Explore the specific technical aspects of CVE-2023-33036 to better understand the affected systems and exploitation methods.
Vulnerability Description
The vulnerability arises from a NULL Pointer Dereference in Hypervisor when an untrusted VM without PSCI support makes a PSCI call, leading to a Permanent DOS condition.
Affected Systems and Versions
The CVE impacts various versions of Qualcomm's Snapdragon platform, including AQT1000, FastConnect series, QCA series, Snapdragon mobile platforms, and more.
Exploitation Mechanism
The attack vector for CVE-2023-33036 is local, with a low attack complexity and requires no privileges. The vulnerability can be exploited in scenarios involving untrusted VMs without PSCI support.
Mitigation and Prevention
Guidelines for immediate actions and long-term security practices to safeguard systems vulnerable to CVE-2023-33036.
Immediate Steps to Take
To mitigate the risk associated with CVE-2023-33036, implement security patches, apply updates, and monitor the Hypervisor for any unusual activities.
Long-Term Security Practices
Establish robust security protocols, conduct regular security audits, and ensure all VMs have the necessary support to prevent DOS attacks in Hypervisor environments.
Patching and Updates
Keep abreast of security bulletins from Qualcomm and apply patches promptly to address vulnerabilities like CVE-2023-33036.