CVE-2023-52476
CVSS 3.1 Score 5.5 of 10 (medium)
Details
Published Feb 29, 2024
Updated: Jan 10, 2025
Summary
CVE-2023-52476 is a vulnerability affecting the Linux kernel that can cause a panic when a vsyscall is made while LBR sampling is active. When a vsyscall is interrupted for perf sampling, a specific call sequence ensues, leading to an attempt to access an address in the vsyscall region. This access results in an unhandled page fault and an oops. To mitigate this issue, the Linux kernel now filters for vsyscalls when determining the branch type, ensuring that such accesses are avoided.
Prevent cyber attacks with Recorded Future by prioritizing and patching critical vulnerabilities being exploited by threat actors targeting your industry. Book your demo to learn more.