medium
6.5
CWE
125
Advisory Published
Updated

CVE-2018-1000852

First published: Thu Dec 20 2018(Updated: )

FreeRDP 2.0.0-rc3 contains an out of bounds read vulnerability in drdynvc_process_capability_request function in channels/drdynvc/client/drdynvc_main.c file. To exploit this RDPClient must connect to the rdp server with the echo option. This can lead to a two-byte outbound reading from the client memory. References: <a href="https://github.com/FreeRDP/FreeRDP/issues/4866">https://github.com/FreeRDP/FreeRDP/issues/4866</a> Upstream Patch: <a href="https://github.com/FreeRDP/FreeRDP/pull/4871/commits/baee520e3dd9be6511c45a14c5f5e77784de1471">https://github.com/FreeRDP/FreeRDP/pull/4871/commits/baee520e3dd9be6511c45a14c5f5e77784de1471</a>

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
FreeRDP<2.0.0
FreeRDP=2.0.0
FreeRDP=2.0.0-rc0
FreeRDP=2.0.0-rc1
FreeRDP=2.0.0-rc2
Ubuntu Linux=18.04
Ubuntu Linux=19.10
Ubuntu Linux=20.04
Fedora=28
debian/freerdp2
2.3.0+dfsg1-2+deb11u1
2.3.0+dfsg1-2+deb11u3
2.10.0+dfsg1-1

Remedy

https://github.com/FreeRDP/FreeRDP/pull/4871/commits/baee520e3dd9be6511c45a14c5f5e77784de1471

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2018-1000852?

    CVE-2018-1000852 has a moderate severity rating due to its potential to leak sensitive information.

  • How do I fix CVE-2018-1000852?

    To fix CVE-2018-1000852, upgrade FreeRDP to version 2.3.0 or later, or apply any available patches provided by your distribution.

  • Which versions of FreeRDP are affected by CVE-2018-1000852?

    FreeRDP versions prior to 2.3.0 and any release candidate versions from 2.0.0-rc0 to 2.0.0-rc3 are affected by CVE-2018-1000852.

  • Can CVE-2018-1000852 be exploited without user action?

    Yes, CVE-2018-1000852 can be exploited if the RDP Client connects to an RDP server with the echo option enabled.

  • What impact does CVE-2018-1000852 have on systems?

    Exploitation of CVE-2018-1000852 can lead to an out-of-bounds read, potentially revealing sensitive data from the client.

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