USN-6522-1: FreeRDP vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 23.04
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

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)

Update instructions

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

Ubuntu 23.10

• libfreerdp2-2 - 2.10.0+dfsg1-1.1ubuntu1.1

Ubuntu 23.04

• libfreerdp2-2 - 2.10.0+dfsg1-1ubuntu0.3

Ubuntu 22.04

• libfreerdp2-2 - 2.6.1+dfsg1-3ubuntu2.5

Ubuntu 20.04

• libfreerdp2-2 - 2.2.0+dfsg1-0ubuntu0.20.04.6

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

References

• CVE-2023-39352
• CVE-2023-39356
• CVE-2022-41877

Related notices

• USN-6522-2: libfreerdp-client2-2, freerdp2, libfreerdp-shadow-subsystem2-2, libfreerdp-server2-2, freerdp2-wayland, freerdp2-dev, freerdp2-shadow-x11, libfreerdp2-2, libuwac0-0, libuwac0-dev, libwinpr2-2, libwinpr2-dev, libfreerdp-shadow2-2, winpr-utils, freerdp2-x11, libwinpr-tools2-2