Bug 1835762 (CVE-2020-11047)

Summary:	CVE-2020-11047 freerdp: out-of-bounds read in autodetect_recv_bandwidth_measure_results function
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	mads, negativo17, oholy, pahan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	freerdp 2.0.0	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-09-29 22:01:06 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:	1835763, 1835764, 1837602, 1837607
Bug Blocks:	1835784

Description Michael Kaplan 2020-05-14 13:17:51 UTC

A vulnerability was found in FreeRDP after 1.1 and before 2.0.0, there is an out-of-bounds read in autodetect_recv_bandwidth_measure_results. A malicious server can extract up to 8 bytes of client memory with a manipulated message by providing a short input and reading the measurement result data. This has been patched in 2.0.0.

References:

https://github.com/FreeRDP/FreeRDP/issues/6009
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-9fw6-m2q8-h5pw

Upstream Commit:

https://github.com/FreeRDP/FreeRDP/commit/f5e73cc7c9cd973b516a618da877c87b80950b65

Comment 1 Michael Kaplan 2020-05-14 13:18:10 UTC

Created freerdp tracking bugs for this issue:

Affects: epel-all [bug 1835764]


Created freerdp1.2 tracking bugs for this issue:

Affects: fedora-all [bug 1835763]

Comment 3 errata-xmlrpc 2020-09-29 20:43:23 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4031 https://access.redhat.com/errata/RHSA-2020:4031

Comment 4 Product Security DevOps Team 2020-09-29 22:01:06 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-11047

Comment 5 errata-xmlrpc 2020-11-04 02:38:43 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4647 https://access.redhat.com/errata/RHSA-2020:4647