CVE-2024-32040

FreeRDP vulnerable to integer underflow in nsc_rle_decode

Severity Score

8.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

FreeRDP is a free implementation of the Remote Desktop Protocol. FreeRDP based clients that use a version of FreeRDP prior to 3.5.0 or 2.11.6 and have connections to servers using the `NSC` codec are vulnerable to integer underflow. Versions 3.5.0 and 2.11.6 patch the issue. As a workaround, do not use the NSC codec (e.g. use `-nsc`).

FreeRDP es una implementación gratuita del protocolo de escritorio remoto. Los clientes basados en FreeRDP que utilizan una versión de FreeRDP anterior a la 3.5.0 o 2.11.6 y tienen conexiones a servidores que utilizan el códec `NSC` son vulnerables al desbordamiento de enteros. Las versiones 3.5.0 y 2.11.6 solucionan el problema. Como workaround, no utilice el códec NSC (por ejemplo, utilice `-nsc`).

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-04-09 CVE Reserved
2024-04-22 CVE Published
2025-02-13 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-191: Integer Underflow (Wrap or Wraparound)

CAPEC

References (10)

URL	Tag	Source
https://github.com/FreeRDP/FreeRDP/pull/10077	X_refsource_misc
https://github.com/FreeRDP/FreeRDP/releases/tag/2.11.6	X_refsource_misc
https://github.com/FreeRDP/FreeRDP/releases/tag/3.5.0	X_refsource_misc
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-23c5-cp23-h2h5	X_refsource_confirm
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5JL476WVJSIE7SBUKVJRVA6A52V2HOLZ
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7SIS6NUNLUBOV4CPCSWKDE6T6C2W3WTR
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PX3U6YPZQ7PEJBVKSBUOLWVH7DHROHY5
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKI4UISUXYNBPN4K6TIQKDRTIJ6CDCKJ

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-32040	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2276724	2024-11-12

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"				>= < 3.0.0 Search vendor "FreeRDP" for product "FreeRDP" and version " >= < 3.0.0"		en		Affected
FreeRDP Search vendor "FreeRDP"		FreeRDP Search vendor "FreeRDP" for product "FreeRDP"				< 2.11.6 Search vendor "FreeRDP" for product "FreeRDP" and version " < 2.11.6"		en		Affected