AusCERT - ESB-2004.0801 -- RHSA-2004:583-01 -- Updated nfs-utils package fixes security vulnerabilities

HOME
About AusCERT
Membership
PKI Services
Training
Publications
Sec. Bulletins
Conferences
News & Media
Services
Web Log
Site Map
Site Help
Member login
ESB-2004.0801 -- RHSA-2004:583-01 -- Updated nfs-utils package fixes security vulnerabilities
Date: 21 December 2004
References: ESB-2004.0763

Click here for printable version
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                     ESB-2004.0801 -- RHSA-2004:583-01
         Updated nfs-utils package fixes security vulnerabilities
                             21 December 2004

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           nfs-utils
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux AS/ES/WS 3
                   Red Hat Desktop version 3
Impact:            Execute Arbitrary Code/Commands
                   Denial of Service
Access:            Existing Account
                   Remote/Unauthenticated
CVE Names:         CAN-2004-1014 CAN-2004-0946

Ref:               ESB-2004.0763

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - ---------------------------------------------------------------------
                   Red Hat Security Advisory

Synopsis:          Updated nfs-utils package fixes security vulnerabilities
Advisory ID:       RHSA-2004:583-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2004-583.html
Issue date:        2004-12-20
Updated on:        2004-12-20
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2004-1014 CAN-2004-0946
- - ---------------------------------------------------------------------

1. Summary:

An updated nfs-utils package that fixes various security issues is now
available.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Problem description:

The nfs-utils package provides a daemon for the kernel NFS server and
related tools, providing a much higher level of performance than the
traditional Linux NFS server used by most users.

This package also contains the showmount program. Showmount queries
the mount daemon on a remote host for information about the NFS
(Network File System) server on the remote host.

SGI reported that the statd daemon did not properly handle the SIGPIPE
signal.  A misconfigured or malicious peer could cause statd to crash,
leading to a denial of service.  The Common Vulnerabilities and Exposures
project (cve.mitre.org) has assigned the name CAN-2004-1014 to this issue.

Arjan van de Ven discovered a buffer overflow in rquotad.  On 64-bit
architectures, an improper integer conversion can lead to a buffer
overflow.  An attacker with access to an NFS share could send a specially
crafted request which could lead to the execution of arbitrary code.  The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-0946 to this issue.

Additionally, this updated package addresses the following issues:

- - - The UID of the nfsnobody account has been fixed for 32-bit and 64-bit
machines. Because the st_uid field of the stat structure is an unsigned
integer, an actual value of -2 cannot be used when creating the account, so
the decimal value of -2 is used. On a 32-bit machine, the decimal value of
- - -2 is 65534 but on a 64-bit machine it is 4294967294. This errata enables
the nfs-utils post-install script to detect the target architecture, so an
appropriate decimal value is used.

All users of nfs-utils should upgrade to this updated package, which
resolves these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  Use Red Hat
Network to download and update your packages.  To launch the Red Hat
Update Agent, use the following command:

    up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

    http://www.redhat.com/docs/manuals/enterprise/

5. Bug IDs fixed (http://bugzilla.redhat.com/):

123900 - LTC5609-Wrong uid/gid for anonuid in nfs mount
139611 - CAN-2004-1014 DoS in statd
138062 - CAN-2004-0946 buffer overflow in rquotad

6. RPMs required:

Red Hat Enterprise Linux AS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/nfs-utils-1.0.6-33EL.src.rpm
3c07aefe1af032508a92e4189d9e2cd2  nfs-utils-1.0.6-33EL.src.rpm

i386:
e17d5bce62acddfa0de2b9b77b9b67db  nfs-utils-1.0.6-33EL.i386.rpm

ia64:
1fe59525701f2bb8c4e5f039a8e613d9  nfs-utils-1.0.6-33EL.ia64.rpm

ppc:
d88d00c954fb90e1d8f30c04ec714d8c  nfs-utils-1.0.6-33EL.ppc.rpm

s390:
a498b1aa5b7f6aa9a829d8cb23331c82  nfs-utils-1.0.6-33EL.s390.rpm

s390x:
15279ec8935e525ebac1b488f012597c  nfs-utils-1.0.6-33EL.s390x.rpm

x86_64:
6dcf9bd7e53e6780c37d8cc28fecdca5  nfs-utils-1.0.6-33EL.x86_64.rpm

Red Hat Desktop version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/nfs-utils-1.0.6-33EL.src.rpm
3c07aefe1af032508a92e4189d9e2cd2  nfs-utils-1.0.6-33EL.src.rpm

i386:
e17d5bce62acddfa0de2b9b77b9b67db  nfs-utils-1.0.6-33EL.i386.rpm

x86_64:
6dcf9bd7e53e6780c37d8cc28fecdca5  nfs-utils-1.0.6-33EL.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/nfs-utils-1.0.6-33EL.src.rpm
3c07aefe1af032508a92e4189d9e2cd2  nfs-utils-1.0.6-33EL.src.rpm

i386:
e17d5bce62acddfa0de2b9b77b9b67db  nfs-utils-1.0.6-33EL.i386.rpm

ia64:
1fe59525701f2bb8c4e5f039a8e613d9  nfs-utils-1.0.6-33EL.ia64.rpm

x86_64:
6dcf9bd7e53e6780c37d8cc28fecdca5  nfs-utils-1.0.6-33EL.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/nfs-utils-1.0.6-33EL.src.rpm
3c07aefe1af032508a92e4189d9e2cd2  nfs-utils-1.0.6-33EL.src.rpm

i386:
e17d5bce62acddfa0de2b9b77b9b67db  nfs-utils-1.0.6-33EL.i386.rpm

ia64:
1fe59525701f2bb8c4e5f039a8e613d9  nfs-utils-1.0.6-33EL.ia64.rpm

x86_64:
6dcf9bd7e53e6780c37d8cc28fecdca5  nfs-utils-1.0.6-33EL.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1014
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0946

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2004 Red Hat, Inc.

- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.7 (GNU/Linux)

iD8DBQFBxyHeXlSAg2UNWIIRAhHrAKCCJ62+ffj7g8vSuekwppXpq/J6GwCgp2H6
49dAmTgX2liMAqE7dSaNDww=
=HyoH
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        http://www.auscert.org.au/render.html?cid=1980

If you believe that your computer system has been compromised or attacked in 
any way, we encourage you to let us know by completing the secure National IT 
Incident Reporting Form at:

        http://www.auscert.org.au/render.html?it=3192

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967

iQCVAwUBQcdthCh9+71yA2DNAQLfKAQAhkYulQyFpJssHCfUYuWWV2kQt6x6Vmyk
wYXysfaIT6dfMbIOlqG9MM+863XpcGi4RVWOC4QkZ9P9NI4AE7yH5bafEiFdFnVi
vgBm7OHN9yvqXEfXllAyQTZqBG+PxM0yRBm3p6C7FvElSRX5oDeFWtp415FcGXIf
vGDWvcOfZ9s=
=sjR8
-----END PGP SIGNATURE-----