What is CVE-2020-11038?

CVE-2020-11038 is a vulnerability in FreeRDP versions up to 2.0.0 that allows an attacker to perform a buffer overflow by manipulating the server and instructing the client to allocate a smaller buffer size than requested.

How severe is CVE-2020-11038?

CVE-2020-11038 has a severity rating of 5.4 (medium).

Which software is affected by CVE-2020-11038?

FreeRDP up to version 2.0.0, openSUSE Leap 15.1, and Debian Linux 10.0 are affected by CVE-2020-11038.

How can an attacker exploit CVE-2020-11038?

An attacker can exploit CVE-2020-11038 by manipulating the server to instruct the client to allocate a smaller buffer size and then sending subsequent messages to overflow the buffer.

Are there any patches or fixes available for CVE-2020-11038?

Yes, patches and fixes for CVE-2020-11038 are available. Please refer to the provided references for more information.

Vulnerability/
CVE-2020-11038

medium

6.9

CWE

680 190 119

29/5/2020

4/8/2024

CVE-2020-11038: Integer Overflow to Buffer Overflow in FreeRDP

First published: Fri May 29 2020(Updated: )

In FreeRDP less than or equal to 2.0.0, an Integer Overflow to Buffer Overflow exists. When using /video redirection, a manipulated server can instruct the client to allocate a buffer with a smaller size than requested due to an integer overflow in size calculation. With later messages, the server can manipulate the client to write data out of bound to the previously allocated buffer. This has been patched in 2.1.0.

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

Affected Software	Affected Version	How to fix
FreeRDP FreeRDP	<2.1.0
openSUSE Leap	=15.1
Debian Debian Linux	=10.0

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Frequently Asked Questions

What is CVE-2020-11038?
CVE-2020-11038 is a vulnerability in FreeRDP versions up to 2.0.0 that allows an attacker to perform a buffer overflow by manipulating the server and instructing the client to allocate a smaller buffer size than requested.
How severe is CVE-2020-11038?
CVE-2020-11038 has a severity rating of 5.4 (medium).
Which software is affected by CVE-2020-11038?
FreeRDP up to version 2.0.0, openSUSE Leap 15.1, and Debian Linux 10.0 are affected by CVE-2020-11038.
How can an attacker exploit CVE-2020-11038?
An attacker can exploit CVE-2020-11038 by manipulating the server to instruct the client to allocate a smaller buffer size and then sending subsequent messages to overflow the buffer.
Are there any patches or fixes available for CVE-2020-11038?
Yes, patches and fixes for CVE-2020-11038 are available. Please refer to the provided references for more information.

collector/nvd-index
collector/nvd-api
agent/author
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/title
agent/last-modified-date
agent/severity
agent/weakness
agent/references
agent/tags
agent/first-publish-date
agent/event
agent/description
vendor/freerdp
canonical/freerdp freerdp
vendor/opensuse
canonical/opensuse leap
version/opensuse leap/15.1
vendor/debian
canonical/debian debian linux
version/debian debian linux/10.0

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