Bug 1853385 (CVE-2020-9498)

Summary:	CVE-2020-9498 guacamole-server: Dangling pointer in RDP static virtual channel handling
Product:	[Other] Security Response	Reporter:	Michael Kaplan <mkaplan>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	negativo17
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-07-02 19:27:37 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:	1853386, 1853387, 1853388
Bug Blocks:

Description Michael Kaplan 2020-07-02 14:33:35 UTC

Apache Guacamole 1.1.0 and older may mishandle pointers involved in
processing data received via RDP static virtual channels. If a user
connects to a malicious or compromised RDP server, a series of
specially-crafted PDUs could result in memory corruption, possibly
allowing arbitrary code to be executed with the privileges of the
running guacd process.

Mitigation:
Users of versions of Apache Guacamole 1.1.0 and older that provide
access to untrusted RDP servers should upgrade to 1.2.0.

Comment 1 Michael Kaplan 2020-07-02 14:33:57 UTC

Created guacamole-server tracking bugs for this issue:

Affects: epel-6 [bug 1853387]
Affects: epel-7 [bug 1853388]
Affects: fedora-all [bug 1853386]

Comment 2 Michael Kaplan 2020-07-02 14:36:04 UTC

External References:

https://lists.apache.org/thread.html/rff824b38ebd2fddc726b816f0e509696b83b9f78979d0cd021ca623b%40%3Cannounce.guacamole.apache.org%3E

Comment 3 Product Security DevOps Team 2020-07-02 19:27:37 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.