USN-6522-1: FreeRDP vulnerabilities

Publication date

29 November 2023

Overview

Several security issues were fixed in FreeRDP.


Packages

  • freerdp2 - RDP client for Windows Terminal Services

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)

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)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
23.10 mantic libfreerdp2-2 –  2.10.0+dfsg1-1.1ubuntu1.1
23.04 lunar libfreerdp2-2 –  2.10.0+dfsg1-1ubuntu0.3
22.04 jammy libfreerdp2-2 –  2.6.1+dfsg1-3ubuntu2.5
20.04 focal libfreerdp2-2 –  2.2.0+dfsg1-0ubuntu0.20.04.6

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


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