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enterprise-watch-list: [RHSA-2007:1128-01] Important: autofs sec

[RHSA-2007:1128-01] Important: autofs security update

From: <bugzilla_at_nospam>
Date: Wed Dec 12 2007 - 12:34:47 GMT
To: rhsa-announce@redhat.com, enterprise-watch-list@redhat.com


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  • --------------------------------------------------------------------- Red Hat Security Advisory
Synopsis: Important: autofs security update Advisory ID: RHSA-2007:1128-01 Advisory URL: https://rhn.redhat.com/errata/RHSA-2007-1128.html Issue date: 2007-12-12 Updated on: 2007-12-12 Product: Red Hat Enterprise Linux CVE Names: CVE-2007-5964 - ---------------------------------------------------------------------
  1. Summary:

Updated autofs packages are now available to fix a security flaw for Red Hat Enterprise Linux 5.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Problem description:

The autofs utility controls the operation of the automount daemon, which automatically mounts and unmounts file systems after a period of inactivity.

There was a security issue with the default installed configuration of autofs version 5 whereby the entry for the "hosts" map did not specify the "nosuid" mount option. A local user with control of a remote nfs server could create a setuid root executable within an exported filesystem on the remote nfs server that, if mounted using the default hosts map, would allow the user to gain root privileges. (CVE-2007-5964)

Due to the fact that autofs always mounted hosts map entries suid by default, autofs has now been altered to always use the "nosuid" option when mounting from the default hosts map. The "suid" option must be explicitly given in the master map entry to revert to the old behavior. This change affects only the hosts map which corresponds to the /net entry in the default configuration.

Users are advised to upgrade to these updated autofs packages, which resolve this issue.

Red Hat would like to thank Josh Lange for reporting this issue.

4. 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

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

410031 - CVE-2007-5964 autofs defaults don't restrict suid in /net

6. RPMs required:

Red Hat Enterprise Linux Desktop (v. 5 client):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/autofs-5.0.1-0.rc2.55.el5.1.src.rpm 2a25ed0ef9c01abe09f19f8a89452fcd autofs-5.0.1-0.rc2.55.el5.1.src.rpm

i386:
29d9a96e22d453a52c3cb6b2663bd984 autofs-5.0.1-0.rc2.55.el5.1.i386.rpm 92dcccbc5132698374cea61159366f23 autofs-debuginfo-5.0.1-0.rc2.55.el5.1.i386.rpm

x86_64:
234de8994b5e122cff78e9655e19d510 autofs-5.0.1-0.rc2.55.el5.1.x86_64.rpm 570bd949d8da5b104fdb4a8de2eccbaf autofs-debuginfo-5.0.1-0.rc2.55.el5.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

SRPMS:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/autofs-5.0.1-0.rc2.55.el5.1.src.rpm 2a25ed0ef9c01abe09f19f8a89452fcd autofs-5.0.1-0.rc2.55.el5.1.src.rpm

i386:
29d9a96e22d453a52c3cb6b2663bd984 autofs-5.0.1-0.rc2.55.el5.1.i386.rpm 92dcccbc5132698374cea61159366f23 autofs-debuginfo-5.0.1-0.rc2.55.el5.1.i386.rpm

ia64:
8abb97c8cd6ad16e67780c6d4251ded3 autofs-5.0.1-0.rc2.55.el5.1.ia64.rpm 86fda06872725a92ea8f3ffb552c7307 autofs-debuginfo-5.0.1-0.rc2.55.el5.1.ia64.rpm

ppc:
780aa280f5927f34506acd60353bf0fc autofs-5.0.1-0.rc2.55.el5.1.ppc.rpm 36925b686e89552da9cf3ca66fceba20 autofs-debuginfo-5.0.1-0.rc2.55.el5.1.ppc.rpm

s390x:
37a973950e8683cbaf4b47caa2458ffb autofs-5.0.1-0.rc2.55.el5.1.s390x.rpm 4a8545d5d0f8c8bf1ae2a955ca5def5b autofs-debuginfo-5.0.1-0.rc2.55.el5.1.s390x.rpm

x86_64:
234de8994b5e122cff78e9655e19d510 autofs-5.0.1-0.rc2.55.el5.1.x86_64.rpm 570bd949d8da5b104fdb4a8de2eccbaf autofs-debuginfo-5.0.1-0.rc2.55.el5.1.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=CVE-2007-5964 http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2007 Red Hat, Inc.
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