RHBA-2011:0976 - Bug Fix Advisory

Topic

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

Description

The gzip package provides the GNU gzip data compression program.

This update fixes the following bugs:

• Previously, an automatic attempt to close the standard output (stdout) stream

could under certain circumstances fail. However, the gzip utility did not check
if the final stdout close was successful. Due to this issue, the gzip utility
could cause silent data loss while it returned a zero exit status, indicating
success. This update closes the stdin and stdout streams carefully at exit time.
Now, a non-zero exit status is returned if there are any problems while closing
the stdin or stdout streams. (BZ#514562)

• Previously, the gzip(1) man page contained a typographic error. This update

corrects this error. Now, the manual page is typographically correct.
(BZ#675464)

Users of gzip are advised to upgrade to this updated package, which fixes 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 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 - 514562 - gzip: silent data loss e.g., on NFS, due to unchecked close of stdout
• BZ - 675464 - gzip(1) manpage fix

CVEs

(none)

References

(none)