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Red Hat: RHSA-2011:0506-01 Moderate: rdesktop Unauthorized Access

red hat
Calendar Grey May 11, 2011
Dist Redhat Esm H88
==================================================================== Red Hat Security Advisory Synop
An updated rdesktop package that fixes one security issue is now available for Red Hat Enterprise Linux 5 and 6

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

Summary

rdesktop is a client for the Remote Desktop Server (previously, Terminal Server) in Microsoft Windows. It uses the Remote Desktop Protocol (RDP) to remotely present a user's desktop.
A directory traversal flaw was found in the way rdesktop shared a local path with a remote server. If a user connects to a malicious server with rdesktop, the server could use this flaw to cause rdesktop to read and write to arbitrary, local files accessible to the user running rdesktop. (CVE-2011-1595)
Red Hat would like to thank Cendio AB for reporting this issue. Cendio AB acknowledges an anonymous contributor working with the SecuriTeam Secure Disclosure program as the original reporter.
Users of rdesktop should upgrade to this updated package, which contains a backported patch to resolve this issue.

Topics%20covered

Topics Covered

security advisory critical issue unauthorized access Red Hat Enterprise Linux remote desktop rdesktop

References

https://access.redhat.com/security/cve/CVE-2011-1595 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: rdesktop-1.6.0-3.el5_6.2.i386.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.i386.rpm
x86_64: rdesktop-1.6.0-3.el5_6.2.x86_64.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: rdesktop-1.6.0-3.el5_6.2.i386.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.i386.rpm
ia64: rdesktop-1.6.0-3.el5_6.2.ia64.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.ia64.rpm
ppc: rdesktop-1.6.0-3.el5_6.2.ppc.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.ppc.rpm
s390x: rdesktop-1.6.0-3.el5_6.2.s390x.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.s390x.rpm
x86_64: rdesktop-1.6.0-3.el5_6.2.x86_64.rpm rdesktop-debuginfo-1.6.0-3.el5_6.2.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: rdesktop-1.6.0-8.el6_0.1.i686.rpm rdesktop-debuginfo-1.6.0-8.el6_0.1.i686.rpm
x86_64: rdesktop-1.6.0-8.el6_0.1.x86_64.rpm rdesktop-debuginfo-1.6.0-8.el6_0.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: rdesktop-1.6.0-8.el6_0.1.i686.rpm rdesktop-debuginfo-1.6.0-8.el6_0.1.i686.rpm
ppc64: rdesktop-1.6.0-8.el6_0.1.ppc64.rpm rdesktop-debuginfo-1.6.0-8.el6_0.1.ppc64.rpm
s390x: rdesktop-1.6.0-8.el6_0.1.s390x.rpm rdesktop-debuginfo-1.6.0-8.el6_0.1.s390x.rpm
x86_64: rdesktop-1.6.0-8.el6_0.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:0506-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0506.html
Issue date: 2011-05-11

Topic

An updated rdesktop package that fixes one security issue is now availablefor Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory critical issue unauthorized access Red Hat Enterprise Linux remote desktop rdesktop

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

676252 - CVE-2011-1595 rdesktop remote file access

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