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Ubuntu Security Notice USN-5461-1

Ubuntu Security Notice USN-5461-1
Posted Jun 7, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5461-1 - It was discovered that FreeRDP incorrectly handled empty password values. A remote attacker could use this issue to bypass server authentication. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10. It was discovered that FreeRDP incorrectly handled server configurations with an invalid SAM file path. A remote attacker could use this issue to bypass server authentication.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2022-24882, CVE-2022-24883
SHA-256 | 1d0fe0613b35cc1b905808b45f71bafa367f62e1a5115148c9a99c5ea7cc94c8

Ubuntu Security Notice USN-5461-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5461-1
June 06, 2022

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

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

- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

FreeRDP could allow unintended access to network services.

Software Description:
- freerdp2: RDP client for Windows Terminal Services

Details:

It was discovered that FreeRDP incorrectly handled empty password values. A
remote attacker could use this issue to bypass server authentication. This
issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 21.10.
(CVE-2022-24882)

It was discovered that FreeRDP incorrectly handled server configurations
with an invalid SAM file path. A remote attacker could use this issue to
bypass server authentication. (CVE-2022-24883)

Update instructions:

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

Ubuntu 22.04 LTS:
libfreerdp-client2-2 2.6.1+dfsg1-3ubuntu2.1
libfreerdp-server2-2 2.6.1+dfsg1-3ubuntu2.1

Ubuntu 21.10:
libfreerdp-client2-2 2.3.0+dfsg1-2ubuntu0.2
libfreerdp-server2-2 2.3.0+dfsg1-2ubuntu0.2

Ubuntu 20.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.20.04.3
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.20.04.3

Ubuntu 18.04 LTS:
libfreerdp-client2-2 2.2.0+dfsg1-0ubuntu0.18.04.3
libfreerdp-server2-2 2.2.0+dfsg1-0ubuntu0.18.04.3

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5461-1
CVE-2022-24882, CVE-2022-24883

Package Information:
https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-3ubuntu2.1
https://launchpad.net/ubuntu/+source/freerdp2/2.3.0+dfsg1-2ubuntu0.2
https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.20.04.3
https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.18.04.3
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