CVE-2020-11521: Integer Overflow

Published May 15, 2020
·
Updated

Last updated 25 August 2025

Other sources

libfreerdp/codec/planar.c in FreeRDP version > 1.0 through 2.0.0-rc4 has an Out-of-bounds Write.

Launchpad

Affected Software

14 affected componentsFixes available
FreeRDP freerdp>1.0.0<2.0.0
FreeRDP freerdp=2.0.0
FreeRDP freerdp=2.0.0-rc0
FreeRDP freerdp=2.0.0-rc1
FreeRDP freerdp=2.0.0-rc2
FreeRDP freerdp=2.0.0-rc3
FreeRDP freerdp=2.0.0-rc4
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Canonical Ubuntu Linux=20.04
openSUSE Leap=15.1
Debian Debian Linux=9.0
debian/freerdp2
2.3.0+dfsg1-2+deb11u12.3.0+dfsg1-2+deb11u32.11.7+dfsg1-6~deb12u1

Event History

May 15, 2020
CVE Published
via MITRE·04:07 PM
Data Sourced
via MITRE·04:07 PM
Description
Jan 11, 2024
Data Sourced
via Launchpad·11:35 PM
Description
Feb 22, 2026
Data Sourced
via Ubuntu·03:44 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·03:46 PM
DescriptionAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2020-11521?

CVE-2020-11521 is classified as a high-severity vulnerability due to its potential for out-of-bounds writes which could lead to arbitrary code execution.

2

How do I fix CVE-2020-11521?

To fix CVE-2020-11521, you should upgrade FreeRDP to version 2.3.0+dfsg1-2+deb11u1 or later.

3

Which versions of FreeRDP are affected by CVE-2020-11521?

FreeRDP versions greater than 1.0 and up to 2.0.0-rc4 are affected by CVE-2020-11521.

4

What type of vulnerability is CVE-2020-11521?

CVE-2020-11521 is an out-of-bounds write vulnerability that may allow attackers to execute arbitrary code.

5

Is CVE-2020-11521 present in Debian systems?

Yes, CVE-2020-11521 can be present in Debian systems running vulnerable versions of FreeRDP.

Contact

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