RHBA-2013:0468 - Bug Fix Advisory

Topic

Updated nfs-utils packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The nfs-utils packages provide a daemon for the kernel Network File System (NFS)
server, and related tools such as the mount.nfs, umount.nfs, and showmount.

This update fixes the following bugs:

• Prior to this update, the rpc.mound daemon could cause NFS clients with

already mounted NFSv3 shares to become suspended. This update modifies the
underlying code to parse the IP address earlier. (BZ#797209)

• Prior to this update, nfs-utils allowed stronger encryption types than Single

DES. As a consequence, mounts to legacy servers that used the "-o sec=krb5"
option failed. This update adds the -l flag to allow only Single DES. Now,
secure mounts work with legacy servers as expected. (BZ#802469)

• Prior to this update, NFS clients could fail to mount a share with the NFSv4

server if the the server had a large amount of exports to netgroups. As a
consequence, NFSv4 mounts could become suspended. This update modifies the
use_ipaddr case so that NFSv4 now mounts as expected. (BZ#815673)

• Prior to this update, the NFS idmapper failed to initialize as expected. As a

consequence, file permissions were incorrect. This update modifies the
underlying code so that the idmapper initializes correctly. (BZ#849945)

Users of nfs-utils are advised to upgrade to these updated packages, which fix
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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 784909 - rpc.gssd linking issue
• BZ - 797209 - NFS3 mounts hang on clients after getting "nfsd: Dropping request; may be revisited later" on server
• BZ - 802469 - RHEL6 fails to mount from RHEL5/Debian 6 nfs4 server with sec=krb5
• BZ - 815673 - NFS4 mounts hang on clients with many exports to netgroups
• BZ - 816727 - nfsidmap command needs to use the Verbosity variable in /etc/idmapd.conf
• BZ - 820737 - nfs-utils: patch inclusion request: fix referrals that use IPv6 addresses
• BZ - 869400 - NFSv4 referrals fail if NFS server returns hostnames rather than IP addresses (nfs-utils part)
• BZ - 877052 - "minorversion=" mount option missing in nfs(5) man page

CVEs

(none)

References

(none)