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Security Advisory Important: autofs5 security update

Advisory: RHSA-2007:1129-5
Type: Security Advisory
Severity: Important
Issued on: 2007-12-12
Last updated on: 2007-12-12
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-2007-5964

Details

Updated Red Hat Enterprise Linux 4 Technology Preview autofs5 packages are
now available to fix a security flaw.

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 and unmounts file systems after a period of
inactivity. The autofs version 5 package was made available as a
technology preview in Red Hat Enterprise Linux version 4.6.

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 version 5 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 autofs5 packages, which
resolve this issue.

Red Hat would like to thank Josh Lange 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)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: 843984a6c993a423d230b60a53bdac84
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
Red Hat Enterprise Linux AS (v. 4)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: 843984a6c993a423d230b60a53bdac84
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.1.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: e8651311ccacbb795889d6c6fb5ea937
 
PPC:
autofs5-5.0.1-0.rc2.55.el4_6.1.ppc.rpm
File outdated by:  RHBA-2011:0241
    MD5: 17078df28123aef61102d27fdc23f36e
 
s390:
autofs5-5.0.1-0.rc2.55.el4_6.1.s390.rpm
File outdated by:  RHBA-2011:0241
    MD5: 7dfd1842cd49a84cec0c647d1806020e
 
s390x:
autofs5-5.0.1-0.rc2.55.el4_6.1.s390x.rpm
File outdated by:  RHBA-2011:0241
    MD5: f9df3328f755b3d40d724e83a5fa4bc4
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
Red Hat Enterprise Linux AS (v. 4.6.z)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHSA-2007:1177
    MD5: 843984a6c993a423d230b60a53bdac84
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.1.ia64.rpm
File outdated by:  RHSA-2007:1177
    MD5: e8651311ccacbb795889d6c6fb5ea937
 
PPC:
autofs5-5.0.1-0.rc2.55.el4_6.1.ppc.rpm
File outdated by:  RHSA-2007:1177
    MD5: 17078df28123aef61102d27fdc23f36e
 
s390:
autofs5-5.0.1-0.rc2.55.el4_6.1.s390.rpm
File outdated by:  RHSA-2007:1177
    MD5: 7dfd1842cd49a84cec0c647d1806020e
 
s390x:
autofs5-5.0.1-0.rc2.55.el4_6.1.s390x.rpm
File outdated by:  RHSA-2007:1177
    MD5: f9df3328f755b3d40d724e83a5fa4bc4
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHSA-2007:1177
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
Red Hat Enterprise Linux ES (v. 4)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: 843984a6c993a423d230b60a53bdac84
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.1.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: e8651311ccacbb795889d6c6fb5ea937
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
Red Hat Enterprise Linux ES (v. 4.6.z)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHSA-2007:1177
    MD5: 843984a6c993a423d230b60a53bdac84
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.1.ia64.rpm
File outdated by:  RHSA-2007:1177
    MD5: e8651311ccacbb795889d6c6fb5ea937
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHSA-2007:1177
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
Red Hat Enterprise Linux WS (v. 4)

IA-32:
autofs5-5.0.1-0.rc2.55.el4_6.1.i386.rpm
File outdated by:  RHBA-2011:0241
    MD5: 843984a6c993a423d230b60a53bdac84
 
IA-64:
autofs5-5.0.1-0.rc2.55.el4_6.1.ia64.rpm
File outdated by:  RHBA-2011:0241
    MD5: e8651311ccacbb795889d6c6fb5ea937
 
x86_64:
autofs5-5.0.1-0.rc2.55.el4_6.1.x86_64.rpm
File outdated by:  RHBA-2011:0241
    MD5: 1ba8f965d1eab75e4245600c2ac8d188
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

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