Security Advisory Moderate: rdesktop security update

Advisory: RHSA-2008:0576-3
Type: Security Advisory
Severity: Moderate
Issued on: 2008-07-24
Last updated on: 2008-07-24
Affected Products: Red Hat Desktop (v. 3)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux WS (v. 3)
OVAL: com.redhat.rhsa-20080576.xml
CVEs (cve.mitre.org): CVE-2008-1801

Details

Updated rdesktop packages that fix a security issues are now available for
Red Hat Enterprise Linux 3.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

rdesktop is an open source client for Microsoft Windows NT Terminal Server
and Microsoft Windows 2000 and 2003 Terminal Services, capable of natively
using the Remote Desktop Protocol (RDP) to present the user's NT desktop.
No additional server extensions are required.

An integer underflow vulnerability was discovered in the rdesktop. If an
attacker could convince a victim to connect to a malicious RDP server, the
attacker could cause the victim's rdesktop to crash or, possibly, execute
an arbitrary code. (CVE-2008-1801)

Users of rdesktop should upgrade to these updated packages, which contain a
backported patch to resolve this issue.


Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Updated packages

Red Hat Desktop (v. 3)

SRPMS:
rdesktop-1.2.0-3.src.rpm     abb3e40ffe94cfc2659c098c2f902874
 
IA-32:
rdesktop-1.2.0-3.i386.rpm     f66b98d1157281a554c358617018e9dc
 
x86_64:
rdesktop-1.2.0-3.x86_64.rpm     71006a636cf56a2bce380caed35be632
 
Red Hat Enterprise Linux AS (v. 3)

SRPMS:
rdesktop-1.2.0-3.src.rpm     abb3e40ffe94cfc2659c098c2f902874
 
IA-32:
rdesktop-1.2.0-3.i386.rpm     f66b98d1157281a554c358617018e9dc
 
IA-64:
rdesktop-1.2.0-3.ia64.rpm     bcded19ac47d221e4a230099e0016789
 
PPC:
rdesktop-1.2.0-3.ppc.rpm     e359b77b8b46806d3d8812e36fc201ad
 
s390:
rdesktop-1.2.0-3.s390.rpm     a7e4e3e13169bb4240def112c3ef0ce4
 
s390x:
rdesktop-1.2.0-3.s390x.rpm     8c94c14c8ad461753b4cf6fefdf585d1
 
x86_64:
rdesktop-1.2.0-3.x86_64.rpm     71006a636cf56a2bce380caed35be632
 
Red Hat Enterprise Linux ES (v. 3)

SRPMS:
rdesktop-1.2.0-3.src.rpm     abb3e40ffe94cfc2659c098c2f902874
 
IA-32:
rdesktop-1.2.0-3.i386.rpm     f66b98d1157281a554c358617018e9dc
 
IA-64:
rdesktop-1.2.0-3.ia64.rpm     bcded19ac47d221e4a230099e0016789
 
x86_64:
rdesktop-1.2.0-3.x86_64.rpm     71006a636cf56a2bce380caed35be632
 
Red Hat Enterprise Linux WS (v. 3)

SRPMS:
rdesktop-1.2.0-3.src.rpm     abb3e40ffe94cfc2659c098c2f902874
 
IA-32:
rdesktop-1.2.0-3.i386.rpm     f66b98d1157281a554c358617018e9dc
 
IA-64:
rdesktop-1.2.0-3.ia64.rpm     bcded19ac47d221e4a230099e0016789
 
x86_64:
rdesktop-1.2.0-3.x86_64.rpm     71006a636cf56a2bce380caed35be632
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

445825 - CVE-2008-1801 rdesktop: iso_recv_msg() Integer Underflow Vulnerability


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/