CVE-2022-25480: rtsper Memory Corruption — Fix

Description

Vulnerability in Realtek RtsPer driver for PCIe Card Reader (RtsPer.sys) before 10.0.22000.21355 and Realtek RtsUer driver for USB Card Reader (RtsUer.sys) before 10.0.22000.31274 allows writing to kernel memory beyond the SystemBuffer of the IRP.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
realtek	rtsper	< 10.0.22000.21355
realtek	rtsuer	< 10.0.22000.31274

References

Advisories & Patches

https://www.realtek.com/images/safe-report/Realtek_RtsPer_RtsUer_Security_Advisory_Report.pdf https://www.realtek.com/images/safe-report/Realtek_RtsPer_RtsUer_Security_Advisory_Report.pdf

Other References

http://realtek.com https://gist.github.com/zwclose/feb16f1424779a61cb1d9f6d5681408a https://zwclose.github.io/2024/10/14/rtsper1.html http://realtek.com https://gist.github.com/zwclose/feb16f1424779a61cb1d9f6d5681408a

Frequently Asked Questions

What is CVE-2022-25480? +

Vulnerability in Realtek RtsPer driver for PCIe Card Reader (RtsPer.sys) before 10.0.22000.21355 and Realtek RtsUer driver for USB Card Reader (RtsUer.sys) before 10.0.22000.31274 allows writing to kernel memory beyond the SystemBuffer of the IRP. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-25480? +

CVE-2022-25480 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2022-25480? +

CVE-2022-25480 affects products from realtek, specifically: rtsper, rtsuer. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-25480? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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