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Medium USN-6522-2 3 CVEs

freerdp2 vulnerabilities

Published Dec 7, 2023 · Updated Apr 22, 2026

Summary

USN-6522-1 fixed several vulnerabilities in FreeRDP. This update provides
the corresponding update for Ubuntu 18.04 LTS.
Original advisory details:

It was discovered that FreeRDP incorrectly handled drive redirection. If a
user were tricked into connection to a malicious server, a remote attacker
could use this issue to cause FreeRDP to crash, resulting in a denial of
service, or possibly obtain sensitive information. (CVE-2022-41877)

It was discovered that FreeRDP incorrectly handled certain surface updates.
A remote attacker could use this issue to cause FreeRDP to crash, resulting
in a denial of service, or possibly execute arbitrary code.
(CVE-2023-39352, CVE-2023-39356)

Fixed packages 1

ReleasePackageFixed in
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS freerdp2 2.2.0+dfsg1-0ubuntu0.18.04.4+esm2

Vulnerabilities 3

  • Medium 5.3

    Invalid offset validation leading to Out Of Bound Write in FreeRDP

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to an invalid offset validation leading to Out Of Bound Write. This can be triggered when the values `rect->left` and `rect…

  • Medium 5.3

    Missing offset validation leading to Out-of-Bounds Read in FreeRDP

    FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. In affected versions a missing offset validation may lead to an Out Of Bound Read in the function `gdi_multi_opaque_rect`. In particular there is no code…

  • Medium 4.6

    Missing input length validation in `drive` channel in FreeRDP

    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. T…

References

  • report
    https://ubuntu.com/security/CVE-2022-41877
  • report
    https://ubuntu.com/security/CVE-2023-39352
  • report
    https://ubuntu.com/security/CVE-2023-39356