RHBA-2014:0317 - Bug Fix Advisory

Topic

Updated ksh packages that fix one bug are now available for Red Hat Enterprise
Linux 5.

Description

KornShell (KSH) is a Unix shell developed by AT&T Bell Laboratories, which is
backward-compatible with the Bourne shell (Bash) and includes many features of
the C shell. The most recent version is KSH-93. KornShell complies with the
POSIX.2 standard (IEEE Std 1003.2-1992).

This update fixes the following bug:

• Prior to this update, a fix was introduced for a bug where, under some

circumstances, ksh did not execute command substitution in here-documents.
However, this fix caused a regression. As a consequence, scripts in which
command substitution was used after the pipe character ("|") did not function
properly. With this patch, the fix for the previous bug has been reverted, and
command substitution now works in combination with pipes as intended.
Nevertheless, the reversion also reintroduces the previous bug, which may cause
loss of content in here-documents. (BZ#1076215)

All users of ksh are advised to upgrade to these updated packages, which fix
this bug.

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/site/articles/11258

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 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

CVEs

(none)

References

(none)