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USN-5734-1: FreeRDP vulnerabilities

22 November 2022

Several security issues were fixed in FreeRDP.

Releases

Packages

  • freerdp2 - RDP client for Windows Terminal Services

Details

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu
22.04 LTS. (CVE-2022-39282, CVE-2022-39283)

It was discovered that FreeRDP incorrectly handled certain data lenghts. A
malicious server could use this issue to cause FreeRDP clients to crash,
resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2022-39316, CVE-2022-39317, CVE-2022-39318, CVE-2022-39319,
CVE-2022-39320)

It was discovered that FreeRDP incorrectly handled certain path checks. A
malicious server could use this issue to cause FreeRDP clients to read
files outside of the shared directory. (CVE-2022-39347)

Update instructions

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

Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04

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