RedHat: Moderate: rdesktop security and bug fix update
Summary
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)
Additionally, the following bug was fixed:
A missing command line option caused rdesktop to fail when using the krdc
remote desktop utility. Using krdc to connect to a terminal server resulted
in errors such as the following:
The version of rdesktop you are using ([version]) is too old:
rdesktop [version] or greater is required. A working patch for rdesktop
[version] can be found in KDE CVS.
In this updated package, krdc successfully connects to terminal servers.
Users of rdesktop should upgrade to these updated packages, which contain a
backported patches to resolve these issues.
Summary
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
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1801 http://www.redhat.com/security/updates/classification/#moderate
Package List
Red Hat Enterprise Linux AS version 4:
Source:
i386:
rdesktop-1.3.1-9.i386.rpm
rdesktop-debuginfo-1.3.1-9.i386.rpm
ia64:
rdesktop-1.3.1-9.ia64.rpm
rdesktop-debuginfo-1.3.1-9.ia64.rpm
ppc:
rdesktop-1.3.1-9.ppc.rpm
rdesktop-debuginfo-1.3.1-9.ppc.rpm
s390:
rdesktop-1.3.1-9.s390.rpm
rdesktop-debuginfo-1.3.1-9.s390.rpm
s390x:
rdesktop-1.3.1-9.s390x.rpm
rdesktop-debuginfo-1.3.1-9.s390x.rpm
x86_64:
rdesktop-1.3.1-9.x86_64.rpm
rdesktop-debuginfo-1.3.1-9.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386:
rdesktop-1.3.1-9.i386.rpm
rdesktop-debuginfo-1.3.1-9.i386.rpm
x86_64:
rdesktop-1.3.1-9.x86_64.rpm
rdesktop-debuginfo-1.3.1-9.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
i386:
rdesktop-1.3.1-9.i386.rpm
rdesktop-debuginfo-1.3.1-9.i386.rpm
ia64:
rdesktop-1.3.1-9.ia64.rpm
rdesktop-debuginfo-1.3.1-9.ia64.rpm
x86_64:
rdesktop-1.3.1-9.x86_64.rpm
rdesktop-debuginfo-1.3.1-9.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
i386:
rdesktop-1.3.1-9.i386.rpm
rdesktop-debuginfo-1.3.1-9.i386.rpm
ia64:
rdesktop-1.3.1-9.ia64.rpm
rdesktop-debuginfo-1.3.1-9.ia64.rpm
x86_64:
rdesktop-1.3.1-9.x86_64.rpm
rdesktop-debuginfo-1.3.1-9.x86_64.rpm
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
Topic
Updated rdesktop packages that fix a security issue and a bug are now available for Red Hat Enterprise Linux 4.
This update has been rated as having moderate security impact by the Red Hat Security Response Team.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Bugs Fixed
164462 - krdc requires rdesktop > 1.3.1
445825 - CVE-2008-1801 rdesktop: iso_recv_msg() Integer Underflow Vulnerability