Kernel Memory Leak in Realtek PCIe and USB Card Reader Drivers
CVE-2022-25479
Key Information:
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What is CVE-2022-25479?
A vulnerability in the Realtek RtsPer driver for PCIe Card Readers and the RtsUer driver for USB Card Readers allows for potential leakage of sensitive kernel memory. This occurs due to flaws in the handling of memory operations across the stack and heap. Unauthorized access to kernel memory can lead to exposure of critical system information, potentially compromising the integrity of affected systems. Users and organizations leveraging Realtek products should consider updating to versions 10.0.22000.21355 or higher for RtsPer and 10.0.22000.31274 or higher for RtsUer to mitigate associated risks. For detailed information, refer to the official advisory provided by Realtek.
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.