Bug 1671363 (CVE-2018-8788)

Summary:	CVE-2018-8788 freerdp: Out-of-bounds write in nsc_rle_decode() function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	mads, negativo17, oholy, pahan, pokorra.mailinglists
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	freerdp 2.0.0-rc4	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in freerdp in versions before 2.0.0-rc4. An out-of-bounds write of up to 4 bytes in the nsc_rle_decode() function results in a memory corruption. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:46:58 UTC	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:	1671370, 1684163, 1684164
Bug Blocks:	1671368

Description Andrej Nemec 2019-01-31 13:34:33 UTC

FreeRDP prior to version 2.0.0-rc4 contains an Out-Of-Bounds Write of up to 4 bytes in function nsc_rle_decode() that results in a memory corruption.

Upstream patch:

https://github.com/FreeRDP/FreeRDP/commit/d1112c279bd1a327e8e4d0b5f371458bf2579659

Comment 1 Andrej Nemec 2019-01-31 13:44:22 UTC

Created freerdp tracking bugs for this issue:

Affects: epel-6 [bug 1671370]

Comment 5 errata-xmlrpc 2019-04-02 11:37:06 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:0697 https://access.redhat.com/errata/RHSA-2019:0697