Bug 2276724 (CVE-2024-32040)

Summary:	CVE-2024-32040 freerdp: integer underflow in nsc_rle_decode
Product:	[Other] Security Response	Reporter:	Zack Miele <zmiele>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	FreeRDP 3.5.0, FreeRDP 2.11.6	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2276746, 2276745, 2276747, 2276749, 2276751
Bug Blocks:	2276720

Description Zack Miele 2024-04-23 20:51:13 UTC

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`).

https://github.com/FreeRDP/FreeRDP/pull/10077
https://github.com/FreeRDP/FreeRDP/releases/tag/2.11.6
https://github.com/FreeRDP/FreeRDP/releases/tag/3.5.0

Comment 1 Zack Miele 2024-04-23 21:14:03 UTC

Created freerdp tracking bugs for this issue:

Affects: fedora-38 [bug 2276747]
Affects: fedora-39 [bug 2276749]
Affects: fedora-40 [bug 2276745]


Created freerdp1.2 tracking bugs for this issue:

Affects: epel-7 [bug 2276746]


Created freerdp2 tracking bugs for this issue:

Affects: fedora-40 [bug 2276751]