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AUSCERT External Security Bulletin Redistribution
ESB-2004.0601 -- RHSA-2004:434-01
Updated redhat-config-nfs package resolves several security issues
23 September 2004
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AusCERT Security Bulletin Summary
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Product: redhat-config-nfs
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux AS/ES/WS 3
Red Hat Desktop version 3
Impact: Inappropriate Access
Denial of Service
Access: Existing Account
CVE Names: CAN-2004-0750
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Red Hat Security Advisory
Synopsis: Updated redhat-config-nfs package resolves several security issues
Advisory ID: RHSA-2004:434-01
Issue date: 2004-09-22
Updated on: 2004-09-22
Product: Red Hat Enterprise Linux
CVE Names: CAN-2004-0750
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1. Summary:
An updated redhat-config-nfs package that fixes bugs and potential security
issues is now available for Red Hat Enterprise Linux 3.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - noarch
Red Hat Desktop version 3 - noarch
Red Hat Enterprise Linux ES version 3 - noarch
Red Hat Enterprise Linux WS version 3 - noarch
3. Problem description:
The redhat-config-nfs package includes a graphical user interface for
creating, modifying, and deleting nfs shares.
John Buswell discovered a flaw in redhat-config-nfs that could lead to
incorrect permissions on exported shares when exporting to multiple
hosts. This could cause an option such as "all_squash" to not be
applied to all of the listed hosts. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the name CAN-2004-0750 to
this issue.
Additionally, a bug was found that prevented redhat-config-nfs from being
run if hosts didn't have options set in /etc/exports.
All users of redhat-config-nfs are advised to upgrade to these updated
packages as well as checking their NFS shares directly or via the
/etc/exports file for any incorrectly set options.
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/ for more info):
107997 - CAN-2004-0750 [PATCH] /etc/exports has incorrect syntax for multiple hosts with a single mount point
6. RPMs required:
Red Hat Enterprise Linux AS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/redhat-config-nfs-1.0.13-6.src.rpm
8ad0200a16439ba6341703e277b6edc0 redhat-config-nfs-1.0.13-6.src.rpm
noarch:
ddea963341fba763c3bd428f16c8fede redhat-config-nfs-1.0.13-6.noarch.rpm
Red Hat Desktop version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/redhat-config-nfs-1.0.13-6.src.rpm
8ad0200a16439ba6341703e277b6edc0 redhat-config-nfs-1.0.13-6.src.rpm
noarch:
ddea963341fba763c3bd428f16c8fede redhat-config-nfs-1.0.13-6.noarch.rpm
Red Hat Enterprise Linux ES version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/redhat-config-nfs-1.0.13-6.src.rpm
8ad0200a16439ba6341703e277b6edc0 redhat-config-nfs-1.0.13-6.src.rpm
noarch:
ddea963341fba763c3bd428f16c8fede redhat-config-nfs-1.0.13-6.noarch.rpm
Red Hat Enterprise Linux WS version 3:
SRPMS:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/redhat-config-nfs-1.0.13-6.src.rpm
8ad0200a16439ba6341703e277b6edc0 redhat-config-nfs-1.0.13-6.src.rpm
noarch:
ddea963341fba763c3bd428f16c8fede redhat-config-nfs-1.0.13-6.noarch.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.html#package
7. References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0750
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://www.redhat.com/security/team/contact.html
Copyright 2004 Red Hat, Inc.
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