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USN-3845-1: FreeRDP vulnerabilities

12 December 2018

Several security issues were fixed in FreeRDP.

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Releases

Packages

  • freerdp - RDP client for Windows Terminal Services
  • freerdp2 - RDP client for Windows Terminal Services

Details

Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8784, CVE-2018-8785)

Eyal Itkin discovered FreeRDP incorrectly handled bitmaps. A malicious server
could use this issue to cause FreeRDP to crash, resulting in a denial of
service, or possibly execute arbitrary code. (CVE-2018-8786, CVE-2018-8787)

Eyal Itkin discovered FreeRDP incorrectly handled certain stream encodings. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8788)

Eyal Itkin discovered FreeRDP incorrectly handled NTLM authentication. A
malicious server could use this issue to cause FreeRDP to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only applies
to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-8789)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-3845-2: libfreerdp-dev, freerdp-x11, libfreerdp-core1.1, freerdp, libfreerdp-crypto1.1, libfreerdp-rail1.1, libfreerdp-cache1.1, libfreerdp-common1.1.0, libfreerdp-plugins-standard, libwinpr-credui0.1, libwinpr-error0.1, libwinpr-sspi0.1, libwinpr-sspicli0.1, libfreerdp-codec1.1, libwinpr-input0.1, libwinpr-utils0.1, libwinpr-crt0.1, libwinpr-dev, libwinpr-pool0.1, libwinpr-winsock0.1, libwinpr-synch0.1, libwinpr-handle0.1, libwinpr-timezone0.1, libfreerdp-client1.1, libwinpr-file0.1, libwinpr-interlocked0.1, libwinpr-credentials0.1, libwinpr-crypto0.1, libwinpr-environment0.1, libwinpr-sysinfo0.1, libfreerdp-primitives1.1, libfreerdp-utils1.1, libwinpr-pipe0.1, libwinpr-rpc0.1, libxfreerdp-client1.1, libwinpr-registry0.1, libwinpr-asn1-0.1, libwinpr-io0.1, libwinpr-path0.1, libwinpr-bcrypt0.1, libwinpr-dsparse0.1, libfreerdp-locale1.1, libwinpr-thread0.1, libwinpr-library0.1, libwinpr-heap0.1, libfreerdp-gdi1.1, libwinpr-winhttp0.1

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