CVE-2022-29275 : What You Need to Know
Discover the impact of CVE-2022-29275 where untrusted input in UsbCoreDxe may lead to memory tampering, allowing privilege escalation. Learn about affected systems, exploitation, and mitigation.
In UsbCoreDxe, untrusted input may allow SMRAM or OS memory tampering, potentially leading to privilege escalation. This vulnerability was discovered during a security review by Insyde and affects multiple kernel versions. Learn more about the impact, technical details, and mitigation strategies below.
Understanding CVE-2022-29275
Untrusted input in UsbCoreDxe may allow memory tampering in SMRAM or OS, posing a risk of privilege escalation.
What is CVE-2022-29275?
In UsbCoreDxe, the misuse of untrusted pointers could potentially lead to unauthorized tampering of OS or SMRAM memory, allowing attackers to escalate privileges.
The Impact of CVE-2022-29275
The security vulnerability discovered by Insyde poses a significant risk as it could be exploited to tamper with system memory, leading to privilege escalation.
Technical Details of CVE-2022-29275
Vulnerability Description
The vulnerability in UsbCoreDxe arises from untrusted input, enabling malicious actors to tamper with OS or SMRAM memory, potentially escalating privileges.
Affected Systems and Versions
Vendor and product details are not available. The vulnerability impacts multiple kernel versions, including Kernel 5.0, 5.1, 5.2, 5.3, 5.4, and 5.5.
Exploitation Mechanism
Exploitation of CVE-2022-29275 involves the misuse of untrusted pointers to manipulate system memory, allowing attackers to potentially gain elevated privileges.
Mitigation and Prevention
Understand the immediate steps to secure your systems and adopt long-term security practices to protect against such vulnerabilities.
Immediate Steps to Take
Organizations should apply the provided kernel patches promptly to mitigate the risk of memory tampering and privilege escalation.
Long-Term Security Practices
Implement secure coding practices, conduct regular security reviews, and stay informed about potential vulnerabilities to enhance overall system security.
Patching and Updates
Ensure that all affected kernel versions are updated to the patched versions as provided by the kernel maintainers to address the vulnerability effectively.