Out-of-bounds Read in Freerdp

CVE-2022-39319

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in the `urbdrc` channel. A malicious server can trick a FreeRDP based client to read out of bound data and send it back to the server. This issue has been addressed in version 2.9.0 and all users are advised to upgrade. Users unable to upgrade should not use the `/usb` redirection switch.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-39319?
CVE-2022-39319 is a medium-severity vulnerability in Freerdp, classified under Out-of-bounds Read. CVSS score: 4.6/10. Published 2022-11-16.
How severe is CVE-2022-39319?
Medium severity. CVSS v3 base score is 4.6 out of 10.