RHBA-2012:1276 - Bug Fix Advisory

Topic

Updated rdesktop packages that fix multiple bugs are now available for Red Hat
Enterprise Linux 6.

Description

The rdesktop packages provide a client for the Remote Desktop Server in
Microsoft Windows. The rdesktop client uses the Remote Desktop Protocol (RDP) to
remotely present a user's desktop.

This update fixes the following bugs:

• Prior to this update, redundant conversions functions did not handle the PC/SC

(Personal Computer/Smart Card) integration correctly. As a consequence, the
rdesktop on AMD64 and Intel 64 platforms failed to connect and incorrectly. This
update removes these redundant functions. This update also adds smart card
reader support for AMD64 and Intel 64 platforms. Now, the rdesktop connects as
expected. (BZ#680917, BZ#772020)

• Prior to this update, the rdesktop code for smart card integration with PC/SC

caused a buffer overflow on AMD64 and Intel 64 platforms. As a consequence, the
glibc function "free()" was aborted with a segmentation fault. This update uses
the correct structure and the glibc function
"free()" works now as expected. (BZ#680926)

• Prior to this update, the server generated a cursor-related command that the

rdesktop client did not support when using rdesktop to connect to Windows Server
2008 R2 platforms. As a consequence, the mouse pointer was all black. With this
update, the mouse pointer is drawn correctly when connecting to Windows Server
2008 R2. (BZ#782494)

• Prior to this update, the specification file incorrectly listed the

libao-devel package as an install dependency for rdesktop. This update removes
the libao-devel dependency from the specification file. (BZ#820008)

• Prior to this update, the rdesktop client did not handle the licenses

correctly, As a consequence, certain Terminal Services failed to connect after
the first connection with the error message "disconnect: Internal licensing
error". This update modifies the underlying code to handle licenses as expected.
Now, Terminal Services connect as expected. (BZ#831095)

All users of rdesktop are advised to upgrade to these updated packages, which
fix these bugs.

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

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 680917 - rdesktop fails to connect using SmartCard on x86_64
• BZ - 782494 - Misrendered black mouse pointer to 2008 R2 machines

CVEs

(none)

References

(none)