Bug 2236763 (CVE-2023-39353)

Summary:	CVE-2023-39353 freerdp: missing offset validation leading to Out Of Bound Read
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	desktop-qa-list, oholy
Target Milestone:	---	Keywords:	Security
Target Release:	---	Flags:	vinair: needinfo? (mrehak)
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	freerdp2.11.0, freerdp 3.0.0-beta3	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in FreeRDP. In the `libfreerdp/codec/rfx.c` file, there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result, crafted input can lead to an out-of-bounds read, which may result in a crash.	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:	2236764, 2236765
Bug Blocks:	2236652

Description Marian Rehak 2023-09-01 13:07:49 UTC

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a missing offset validation leading to Out Of Bound Read. In the `libfreerdp/codec/rfx.c` file there is no offset validation in `tile->quantIdxY`, `tile->quantIdxCb`, and `tile->quantIdxCr`. As a result crafted input can lead to an out of bounds read access which in turn will cause a crash. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-hg53-9j9h-3c8f
https://github.com/FreeRDP/FreeRDP/blob/63a2f65618748c12f79ff7450d46c6e194f2db76/libfreerdp/codec/rfx.c#L994-L996

Comment 2 errata-xmlrpc 2024-04-30 09:48:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:2208 https://access.redhat.com/errata/RHSA-2024:2208