RHBA-2008:0692 - Bug Fix Advisory

Topic

An updated shadow-utils package that fixes a bug and adds an enhancement is
now available.

Description

The shadow-utils package includes the necessary programs for converting
UNIX® password files to the shadow password format, as well as tools for
managing user and group accounts.

An infinite loop when running the "grpconv" or "grpunconv" commands, caused
by duplicate entries in "/etc/group" or "/etc/gshadow", has been resolved.

As well, support for the SHA-256 and SHA-512 password hashes has been added
to glibc. As such, shadow-utils has been updated to allow users to use
SHA-256 and SHA-512 password hashes to generate more secure passwords.

Users of shadow-utils are advised to upgrade to this updated package, which
resolves this issue and adds this enhancement.

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
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc

Fixes

• BZ - 444107 - [RHEL4] userdel/usermod infinite loop with duplicate names in /etc/group or /etc/gshadow

CVEs

(none)

References

(none)