CVE-2020-11042

Out-of-bounds Read in FreeRDP

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En FreeRDP versiones superiores a 1.2 y versiones anteriores a 2.0.0, se presenta una lectura fuera de límites en update_read_icon_info. Permite leer una cantidad de memoria del cliente definida por el atacante (32 bits sin signo -) 4 GB) en un búfer intermedio. Esto puede ser usado para bloquear el cliente o almacenar información para su posterior recuperación. Esto ha sido parcheado en la versión 2.0.0.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

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
2020-05-07 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-31 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (9)

URL	Tag	Source
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9jp6-5vf2-cx2q	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
https://github.com/FreeRDP/FreeRDP/issues/6010	2024-08-04

URL	Date	SRC
https://github.com/FreeRDP/FreeRDP/commit/6b2bc41935e53b0034fe5948aeeab4f32e80f30f	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-2020-11042	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1835382	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
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
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"		esm		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"		lts		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