RHBA-2015:0006 - Bug Fix Advisory

Topic

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

Description

The nss_db packages provide a plug-in which allows libc, and in turn
applications, to read information about users, groups, and other information
from local database files which might otherwise need to be read from the
unindexed text-like databases which are typically stored under the /etc
directory on a host, or from remote servers.

This update fixes the following bug:

• Due to a programming error, the plug-in provided by the nss_db package leaked

the memory used to hold a copy of a database file name whenever an application
caused a database to be opened. Among the libc functions back-ended by nss_db
which attempted to open databases, and thus could leak if they succeeded, were:
getaliasbyname(), getgrgid(), getgrnam(), getprotobyname(), getprotobynumber(),
getpwnam(), getpwuid(), getrpcbyname(), getrpcbynumber(), getservbyname(),
getservbyport(), getspnam(), getgrouplist(), setaliasent(), setetherent(),
setgrent(), setnetgrent(), setprotoent(), setpwent(), setrpcent(), setservent(),
and setspent(). A patch has been provided to fix this bug, and debugging or
tracing no longer demonstrates the memory leak when calling the above listed
functions. (BZ#1163493)

Users of nss_db 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/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 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

CVEs

(none)

References

(none)