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AUSCERT External Security Bulletin Redistribution
ESB-2021.3988
USN-5154-1: FreeRDP vulnerabilities
24 November 2021
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AusCERT Security Bulletin Summary
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Product: FreeRDP
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-41160 CVE-2021-41159
Reference: ESB-2021.3857
Original Bulletin:
https://ubuntu.com/security/notices/USN-5154-1
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USN-5154-1: FreeRDP vulnerabilities
23 November 2021
Several security issues were fixed in FreeRDP.
Releases
o Ubuntu 21.10
o Ubuntu 21.04
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o freerdp2 - RDP client for Windows Terminal Services
Details
It was discovered that FreeRDP incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a crash. ( CVE-2021-41159 )
It was discovered that FreeRDP incorrectly handled certain connections.
An attacker could possibly use this issue to execute arbitrary code or
cause a crash. ( CVE-2021-41160 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 21.10
o libfreerdp-client2-2 - 2.3.0+dfsg1-2ubuntu0.1
Ubuntu 21.04
o libfreerdp-client2-2 - 2.3.0+dfsg1-1ubuntu0.1
Ubuntu 20.04
o libfreerdp-client2-2 - 2.2.0+dfsg1-0ubuntu0.20.04.2
Ubuntu 18.04
o libfreerdp-client2-2 - 2.2.0+dfsg1-0ubuntu0.18.04.2
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-41159
o CVE-2021-41160
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