RHBA-2011:0118 - Bug Fix Advisory

Topic

An updated screen package that fixes two bugs is now available for Red Hat
Enterprise Linux 5.

Description

The screen utility allows multiple logins on a single terminal. This is
especially useful for users who telnet into a machine or are connected using a
terminal that does not provide this functionality, but want to use more than one
login.

This update fixes the following bugs:

• During a screen session, running certain commands such as "who am i", "w", or

"logname" as a superuser did not produce the expected output or failed. This was
caused by the fact that the package was built without the utempter support. With
this update, the utility has been updated to include this support, and the above
commands now work as expected. (BZ#474896)

• Due to several unrelated bugs, the screen utility did not pass the Common

Criteria certification requirements. With this update, various parts of the
underlying source code have been modified to target these issues. (BZ#644070)

All users of screen are advised to upgrade to this updated package, which
resolves these issues.

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
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 474896 - add utempter support to screen

CVEs

(none)

References

(none)