CWE
125
Advisory Published
Updated

CVE-2020-11042: Out-of-bounds Read in FreeRDP

First published: Thu May 07 2020(Updated: )

In FreeRDP greater than 1.1 and before 2.0.0, there is an out-of-bounds read in update_read_icon_info. It allows reading a attacker-defined amount of client memory (32bit unsigned -> 4GB) to an intermediate buffer. This can be used to crash the client or store information for later retrieval. This has been patched in 2.0.0.

Credit: security-advisories@github.com security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
FreeRDP FreeRDP>1.1.0<2.0.0
Debian Debian Linux=9.0
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
Debian Debian Linux=10.0
debian/freerdp2
2.3.0+dfsg1-2+deb11u1
2.10.0+dfsg1-1
2.11.7+dfsg1-6

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Frequently Asked Questions

  • What is the severity of CVE-2020-11042?

    The severity of CVE-2020-11042 is medium (5.9).

  • What is the affected software for CVE-2020-11042?

    The affected software for CVE-2020-11042 includes FreeRDP versions greater than 1.1 and before 2.0.0.

  • How can an attacker exploit CVE-2020-11042?

    An attacker can exploit CVE-2020-11042 by performing an out-of-bounds read in update_read_icon_info, allowing them to read a potentially large amount of client memory.

  • How can I fix CVE-2020-11042?

    To fix CVE-2020-11042, update FreeRDP to version 2.0.0 or above.

  • Where can I find more information about CVE-2020-11042?

    You can find more information about CVE-2020-11042 at the following references: [CVE-2020-11042](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11042), [FreeRDP Advisory GHSA-9jp6-5vf2-cx2q](https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2q), [Ubuntu Security Notice USN-4379-1](https://ubuntu.com/security/notices/USN-4379-1).

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