[USN-6749-1] FreeRDP vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-6749-1
April 24, 2024

freerdp2 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- 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 certain context resets.
If a user were tricked into connecting to a malicious server, a remote
attacker could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2024-22211)

Evgeny Legerov discovered that FreeRDP incorrectly handled certain memory
operations. If a user were tricked into connecting to a malicious server, a
remote attacker could use this issue to cause FreeRDP to crash, resulting
in a denial of service, or possibly execute arbitrary code.
(CVE-2024-32039, CVE-2024-32040)

Evgeny Legerov discovered that FreeRDP incorrectly handled certain memory
operations. If a user were tricked into connecting to a malicious server, a
remote attacker could possibly use this issue to cause FreeRDP to crash,
resulting in a denial of service. (CVE-2024-32041, CVE-2024-32458,
CVE-2024-32460)

Evgeny Legerov discovered that FreeRDP incorrectly handled certain memory
operations. A remote attacker could possibly use this issue to cause
FreeRDP clients and servers to crash, resulting in a denial of service.
(CVE-2024-32459)

Update instructions:

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

Ubuntu 23.10:
libfreerdp2-2 2.10.0+dfsg1-1.1ubuntu1.2

Ubuntu 22.04 LTS:
libfreerdp2-2 2.6.1+dfsg1-3ubuntu2.6

Ubuntu 20.04 LTS:
libfreerdp2-2 2.6.1+dfsg1-0ubuntu0.20.04.1

After a standard system update you need to restart your session to make all
the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6749-1
CVE-2024-22211, CVE-2024-32039, CVE-2024-32040, CVE-2024-32041,
CVE-2024-32458, CVE-2024-32459, CVE-2024-32460

Package Information:
https://launchpad.net/ubuntu/+source/freerdp2/2.10.0+dfsg1-1.1ubuntu1.2
https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-3ubuntu2.6
https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-0ubuntu0.20.04.1