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Ubuntu Security Notice USN-6522-1
November 29, 2023
freerdp2 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in FreeRDP.
Software Description:
- 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 LTS:
   libfreerdp2-2                   2.6.1+dfsg1-3ubuntu2.5
Ubuntu 20.04 LTS:
   libfreerdp2-2                   2.2.0+dfsg1-0ubuntu0.20.04.6
In general, a standard system update will make all the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6522-1
   CVE-2022-41877, CVE-2023-39352, CVE-2023-39356
Package Information:
   https://launchpad.net/ubuntu/+source/freerdp2/2.10.0+dfsg1-1.1ubuntu1.1
   https://launchpad.net/ubuntu/+source/freerdp2/2.10.0+dfsg1-1ubuntu0.3
   https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-3ubuntu2.5
   https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.20.04.6