Synopsis

Important: nfs-utils-lib security update

Type/Severity

Security Advisory: Important

Topic

An updated nfs-utils-lib package to correct two security flaws is now
available for Red Hat Enterprise Linux 5.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Description

The nfs-utils-lib package contains support libraries that are needed by the
commands and daemons of the nfs-utils package.

The updated nfs-utils package fixes the following vulnerabilities:

Tenable Network Security discovered a stack buffer overflow flaw in the RPC
library used by nfs-utils-lib. A remote unauthenticated attacker who can
access an application linked against nfs-utils-lib could trigger this flaw
and cause the application to crash. On Red Hat Enterprise Linux 5 it is not
possible to exploit this flaw to run arbitrary code as the overflow is
blocked by FORTIFY_SOURCE. (CVE-2007-3999)

Tony Ernst from SGI has discovered a flaw in the way nfsidmap maps NFSv4
unknown uids. If an unknown user ID is encountered on an NFSv4 mounted
filesystem, the files will default to being owned by 'root' rather than
'nobody'. (CVE-2007-4135)

Users of nfs-utils-lib are advised to upgrade to this updated package,
which contains backported patches to resolve these issues.

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 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 - 250973 - CVE-2007-3999 krb5 RPC library buffer overflow
• BZ - 254040 - CVE-2007-4135 nfs-utils-lib NFSv4 user id mapping flaw

CVEs

• CVE-2007-3999
• CVE-2007-4135

References

• http://www.redhat.com/security/updates/classification/#important

Red Hat Enterprise Linux Server 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
x86_64
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 06f7c195325e377ff2d7ebcdc941802d6521441729042c298568a999904353ec
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73
nfs-utils-lib-devel-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 9f513f7fc91b3d9b586afb68c3aadad26b9ea04523a1fec7fd75090008f89e7b
ia64
nfs-utils-lib-1.0.8-7.2.z2.ia64.rpm	SHA-256: d528d3170d6a9effa7481af7632572092625a7d5bf75cdd707514ec909e3d8ad
nfs-utils-lib-devel-1.0.8-7.2.z2.ia64.rpm	SHA-256: f6db7fcbec7198cdfe5f92ee55f469eed01e05dcbc3229bcc97840ab6fc4d1b7
i386
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73

Red Hat Enterprise Linux Workstation 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
x86_64
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 06f7c195325e377ff2d7ebcdc941802d6521441729042c298568a999904353ec
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73
nfs-utils-lib-devel-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 9f513f7fc91b3d9b586afb68c3aadad26b9ea04523a1fec7fd75090008f89e7b
i386
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73

Red Hat Enterprise Linux Desktop 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
x86_64
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 06f7c195325e377ff2d7ebcdc941802d6521441729042c298568a999904353ec
i386
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47

Red Hat Enterprise Linux for IBM z Systems 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
s390x
nfs-utils-lib-1.0.8-7.2.z2.s390.rpm	SHA-256: 2214b5563c82272578505b2a70b53b142ad9598b4091ffb0c806e1eaa9d3ccca
nfs-utils-lib-1.0.8-7.2.z2.s390x.rpm	SHA-256: dd67ad4ce230657e81c6562e706bc5ab479f9910e2c21c6a8ad6f981f029cf2a
nfs-utils-lib-devel-1.0.8-7.2.z2.s390.rpm	SHA-256: 01e1220eade183c2b0f1261387fdb809f85b25aa011cbe9463838b29a187b771
nfs-utils-lib-devel-1.0.8-7.2.z2.s390x.rpm	SHA-256: 3747b8e77d4bebf6d5fb0aff46037d0c9509b8c01b998d227bcb361f16590bdc

Red Hat Enterprise Linux for Power, big endian 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
ppc
nfs-utils-lib-1.0.8-7.2.z2.ppc.rpm	SHA-256: 752115408f12c7f7322dd7e62c33fa9e9f4b9a772542f88231216d4368b4310d
nfs-utils-lib-1.0.8-7.2.z2.ppc64.rpm	SHA-256: 9299df484c67b9059a23e35f98b7ddc95bbb54bd43ac84c1487a06839dafe743
nfs-utils-lib-devel-1.0.8-7.2.z2.ppc.rpm	SHA-256: 0f6fd2ea1a071dfc8e0ac35851cc03f1dbe52fb654d1c2c3e109868b859fcfc3
nfs-utils-lib-devel-1.0.8-7.2.z2.ppc64.rpm	SHA-256: 3499ea40ef70fec0353e44bbebcd6b42b7ec5a1f0699bf9921a0c07c23d05553

Red Hat Enterprise Linux Server from RHUI 5

SRPM
nfs-utils-lib-1.0.8-7.2.z2.src.rpm	SHA-256: a3456cb4e501b6407ba95f01fb466ecf0abce4d81afbcd3f944cb14ec733ee6c
x86_64
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 06f7c195325e377ff2d7ebcdc941802d6521441729042c298568a999904353ec
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73
nfs-utils-lib-devel-1.0.8-7.2.z2.x86_64.rpm	SHA-256: 9f513f7fc91b3d9b586afb68c3aadad26b9ea04523a1fec7fd75090008f89e7b
i386
nfs-utils-lib-1.0.8-7.2.z2.i386.rpm	SHA-256: 78bbb967b9d8bc021aa7e3ef714ad6a4794a2137f37406caf9826e4cd55aaf47
nfs-utils-lib-devel-1.0.8-7.2.z2.i386.rpm	SHA-256: a6b03efa55327e6148d7a73b01499326787e6a5cfa562c415bb9a0bddfb07a73