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Ubuntu 22.04 LTS USN-5734-1 Critical FreeRDP Denial of Service

ubuntu
Calendar Grey November 22, 2022
Dist Ubuntu Esm H88
A number of security vulnerabilities have been addressed in FreeRDP across various Ubuntu releases. Make sure your system is appropriately updated.
Several security issues were fixed in FreeRDP.

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 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...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu update instructions critical severity FreeRDP

Update Instructions

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

Ubuntu 22.10:
   libfreerdp-client2-2            2.8.1+dfsg1-0ubuntu1.1
   libfreerdp-server2-2            2.8.1+dfsg1-0ubuntu1.1

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

Ubuntu 20.04 LTS:
   libfreerdp-client2-2            2.2.0+dfsg1-0ubuntu0.20.04.4
   libfreerdp-server2-2            2.2.0+dfsg1-0ubuntu0.20.04.4

Ubuntu 18.04 LTS:
   libfreerdp-client2-2            2.2.0+dfsg1-0ubuntu0.18.04.4
   libfreerdp-server2-2            2.2.0+dfsg1-0ubuntu0.18.04.4

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

References

https://ubuntu.com/security/notices/USN-5734-1

CVE-2022-39282, CVE-2022-39283, CVE-2022-39316, CVE-2022-39317,

CVE-2022-39318, CVE-2022-39319, CVE-2022-39320, CVE-2022-39347

Severity
critical
Lowest
Low
Medium
High
Critical

November 22, 2022

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu update instructions critical severity FreeRDP

Package Information

https://launchpad.net/ubuntu/+source/freerdp2/2.8.1+dfsg1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/freerdp2/2.6.1+dfsg1-3ubuntu2.3
https://launchpad.net/ubuntu/+source/freerdp2/2.2.0+dfsg1-0ubuntu0.20.04.4

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