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Security Advisory Important: autofs5 security update

Advisory: RHSA-2007:1177-4
Type: Security Advisory
Severity: Important
Issued on: 2007-12-20
Last updated on: 2007-12-20
Affected Products: Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux AS (v. 4.6.z)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux ES (v. 4.6.z)
Red Hat Enterprise Linux WS (v. 4)
CVEs (cve.mitre.org): CVE-2007-6285

Details

Updated autofs5 technology preview packages that fix a security issue are
now available for Red Hat Enterprise Linux 4.

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

The autofs utility controls the operation of the automount daemon, which
automatically mounts file systems when you use them, and unmounts them when
you are not using them. This can include network file systems and CD-ROMs.
The autofs5 packages were made available as a technology preview in Red Hat
Enterprise Linux 4.6.

There was a security issue with the default configuration of autofs version
5, whereby the entry for the "-hosts" map did not specify the "nodev" mount
option. A local user with control of a remote NFS server could create
special device files on the remote file system, that if mounted using the
default "-hosts" map, could allow the user to access important system
devices. (CVE-2007-6285)

This issue is similar to CVE-2007-5964, which fixed a missing "nosuid"
mount option in autofs. Both the "nodev" and "nosuid" options should be
enabled to prevent a possible compromise of machine integrity.

Due to the fact that autofs always mounted "-hosts" map entries "dev" by
default, autofs has now been altered to always use the "nodev" option when
mounting from the default "-hosts" map. The "dev" 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.

All autofs5 users are advised to upgrade to these updated packages, which
resolve this issue.

Red Hat would like to thank Tim Baum for reporting this issue.


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

Updated packages

Red Hat Desktop (v. 4)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: cd74da575ac61ae97bbb04823223dec9
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 51675b74cc163e3b3ccf59c10f71164a
 
Red Hat Enterprise Linux AS (v. 4)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: cd74da575ac61ae97bbb04823223dec9
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.2.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 85ab6c8e98a25fd2c3615cbfd232b083
 
PPC:
autofs5-5.0.1-0.rc2.55.el4_6.2.ppc.rpm
File outdated by:  RHBA-2011:0241
    MD5: cc9ea2b899a2ff380c625f2a7646bf92
 
s390:
autofs5-5.0.1-0.rc2.55.el4_6.2.s390.rpm
File outdated by:  RHBA-2011:0241
    MD5: f4e47b1c36687a607df623577797e4d0
 
s390x:
autofs5-5.0.1-0.rc2.55.el4_6.2.s390x.rpm
File outdated by:  RHBA-2011:0241
    MD5: 93d34bf0ffe7aa3af3674685ae95c308
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 51675b74cc163e3b3ccf59c10f71164a
 
Red Hat Enterprise Linux AS (v. 4.6.z)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm     MD5: cd74da575ac61ae97bbb04823223dec9
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.2.ia64.rpm     MD5: 85ab6c8e98a25fd2c3615cbfd232b083
 
PPC:
autofs5-5.0.1-0.rc2.55.el4_6.2.ppc.rpm     MD5: cc9ea2b899a2ff380c625f2a7646bf92
 
s390:
autofs5-5.0.1-0.rc2.55.el4_6.2.s390.rpm     MD5: f4e47b1c36687a607df623577797e4d0
 
s390x:
autofs5-5.0.1-0.rc2.55.el4_6.2.s390x.rpm     MD5: 93d34bf0ffe7aa3af3674685ae95c308
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm     MD5: 51675b74cc163e3b3ccf59c10f71164a
 
Red Hat Enterprise Linux ES (v. 4)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: cd74da575ac61ae97bbb04823223dec9
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.2.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 85ab6c8e98a25fd2c3615cbfd232b083
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 51675b74cc163e3b3ccf59c10f71164a
 
Red Hat Enterprise Linux ES (v. 4.6.z)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm     MD5: cd74da575ac61ae97bbb04823223dec9
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.2.ia64.rpm     MD5: 85ab6c8e98a25fd2c3615cbfd232b083
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm     MD5: 51675b74cc163e3b3ccf59c10f71164a
 
Red Hat Enterprise Linux WS (v. 4)

SRPMS:
autofs5-5.0.1-0.rc2.55.el4_6.2.src.rpm
File outdated by:  RHBA-2011:0241
    MD5: a1b2f22c851aa6b4adb4f8208dea9ded
 
IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.2.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: cd74da575ac61ae97bbb04823223dec9
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.2.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 85ab6c8e98a25fd2c3615cbfd232b083
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.2.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 51675b74cc163e3b3ccf59c10f71164a
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

426218 - CVE-2007-6285 autofs default doesn't set nodev in /net


References



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

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