medium
4.6
CWE
119 1284
Advisory Published
Updated

CVE-2022-41877: Missing input length validation in `drive` channel in FreeRDP

First published: Wed Nov 16 2022(Updated: )

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input length validation in `drive` 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 drive redirection channel - command line options `/drive`, `+drives` or `+home-drive`.

Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
FreeRDP FreeRDP<2.9.0
Fedoraproject Fedora=36
Fedoraproject Fedora=37
ubuntu/freerdp2<2.9.0
2.9.0
ubuntu/freerdp2<2.2.0+dfsg1-0ubuntu0.18.04.4+
2.2.0+dfsg1-0ubuntu0.18.04.4+
ubuntu/freerdp2<2.2.0+dfsg1-0ubuntu0.20.04.6
2.2.0+dfsg1-0ubuntu0.20.04.6
ubuntu/freerdp2<2.6.1+dfsg1-3ubuntu2.5
2.6.1+dfsg1-3ubuntu2.5
debian/freerdp2<=2.0.0~git20190204.1.2693389a+dfsg1-1+deb10u2<=2.3.0+dfsg1-2+deb11u1
2.3.0+dfsg1-2+deb10u4
2.10.0+dfsg1-1
2.11.2+dfsg1-1
2.11.5+dfsg1-1

Remedy

https://github.com/FreeRDP/FreeRDP/commit/6655841cf2a00b764f855040aecb8803cfc5eaba

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-41877?

    CVE-2022-41877 is a vulnerability in FreeRDP, a remote desktop protocol library and clients, where affected versions are missing input length validation in the `drive` channel, allowing a malicious server to trick a client into reading out-of-bounds data.

  • What is the severity of CVE-2022-41877?

    The severity of CVE-2022-41877 is medium, with a CVSS score of 4.6.

  • Which versions of FreeRDP are affected by CVE-2022-41877?

    Versions up to and excluding 2.9.0 of FreeRDP are affected by CVE-2022-41877.

  • How can a malicious server exploit CVE-2022-41877?

    A malicious server can exploit CVE-2022-41877 by tricking a FreeRDP client to read out-of-bounds data and send it back to the server.

  • How can I fix the vulnerability CVE-2022-41877?

    To fix the vulnerability CVE-2022-41877, users should update to version 2.9.0 or higher of FreeRDP.

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