CVE-2020-11058

Improper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDP

Severity Score

2.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In FreeRDP after 1.1 and before 2.0.0, a stream out-of-bounds seek in rdp_read_font_capability_set could lead to a later out-of-bounds read. As a result, a manipulated client or server might force a disconnect due to an invalid data read. This has been fixed in 2.0.0.

En FreeRDP versiones posteriores a 1.1 y anteriores a 2.0.0, una búsqueda fuera de límites de flujo de datos en rdp_read_font_capability_set podría conllevar a una posterior lectura fuera de límites. Como resultado, un cliente o servidor manipulado podría forzar una desconexión debido a una lectura de datos no válida. Esto ha sido corregido en la versión 2.0.0.

FreeRDP is a free implementation of the Remote Desktop Protocol, released under the Apache license. The xfreerdp client can connect to RDP servers such as Microsoft Windows machines, xrdp, and VirtualBox. The vinagre packages provide the Vinagre remote desktop viewer for the GNOME desktop. Issues addressed include double free, integer overflow, and out of bounds read vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-30 CVE Reserved
2020-05-12 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125: Out-of-bounds Read

CAPEC

References (9)

URL	Tag	Source
https://github.com/FreeRDP/FreeRDP/issues/6011	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/08/msg00054.html	Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00008.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/FreeRDP/FreeRDP/commit/3627aaf7d289315b614a584afb388f04abfb5bbf	2023-10-24
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-wjg2-2f82-466g	2023-10-24

URL	Date	SRC
https://usn.ubuntu.com/4379-1	2023-10-24
https://usn.ubuntu.com/4382-1	2023-10-24
https://access.redhat.com/security/cve/CVE-2020-11058	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1835779	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Freerdp Search vendor "Freerdp"		Freerdp Search vendor "Freerdp" for product "Freerdp"				> 1.1.0 <= 2.0.0 Search vendor "Freerdp" for product "Freerdp" and version " > 1.1.0 <= 2.0.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				20.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "20.04"		lts		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected