[RHSA-2013:0120-01] Low: quota security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Low: quota security and bug fix update

Advisory ID: RHSA-2013:0120-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0120.html

Issue date: 2013-01-08

CVE Names: CVE-2012-3417

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1. Summary:

 

An updated quota package that fixes one security issue and multiple bugs is

now available for Red Hat Enterprise Linux 5.

 

The Red Hat Security Response Team has rated this update as having low

security impact. A Common Vulnerability Scoring System (CVSS) base score,

which gives a detailed severity rating, is available from the CVE link in

the References section.

 

2. Relevant releases/architectures:

 

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

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

 

3. Description:

 

The quota package provides system administration tools for monitoring

and limiting user and group disk usage on file systems.

 

It was discovered that the rpc.rquotad service did not use tcp_wrappers

correctly. Certain hosts access rules defined in "/etc/hosts.allow" and

"/etc/hosts.deny" may not have been honored, possibly allowing remote

attackers to bypass intended access restrictions. (CVE-2012-3417)

 

This issue was discovered by the Red Hat Security Response Team.

 

This update also fixes the following bugs:

 

* Prior to this update, values were not properly transported via the remote

procedure call (RPC) and interpreted by the client when querying the quota

usage or limits for network-mounted file systems if the quota values were

2^32 kilobytes or greater. As a consequence, the client reported mangled

values. This update modifies the underlying code so that such values are

correctly interpreted by the client. (BZ#667360)

 

* Prior to this update, warnquota sent messages about exceeded quota limits

from a valid domain name if the warnquota tool was enabled to send warning

e-mails and the superuser did not change the default warnquota

configuration. As a consequence, the recipient could reply to invalid

addresses. This update modifies the default warnquota configuration to use

the reserved example.com. domain. Now, warnings about exceeded quota limits

are sent from the reserved domain that inform the superuser to change to

the correct value. (BZ#680429)

 

* Previously, quota utilities could not recognize the file system as having

quotas enabled and refused to operate on it due to incorrect up[censored] of

/etc/mtab. This update prefers /proc/mounts to get a list of file systems

with enabled quotas. Now, quota utilities recognize file systems with

enabled quotas as expected. (BZ#689822)

 

* Prior to this update, the setquota(8) tool on XFS file systems failed

to set disk limits to values greater than 2^31 kilobytes. This update

modifies the integer conversion in the setquota(8) tool to use a 64-bit

variable big enough to store such values. (BZ#831520)

 

All users of quota are advised to upgrade to this updated package, which

contains backported patches to resolve these issues.

 

4. Solution:

 

Before applying this update, make sure all previously-released errata

relevant to your system have been applied.

 

This update is available via the Red Hat Network. Details on how to

use the Red Hat Network to apply this update are available at

https://access.redhat.com/knowledge/articles/11258

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

566717 - CVE-2012-3417 quota: incorrect use of tcp_wrappers

667360 - rpc.rquotad can't handle quotas >4TB

 

6. Package List:

 

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

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/quota-3.13-8.el5.src.rpm

 

i386:

quota-3.13-8.el5.i386.rpm

quota-debuginfo-3.13-8.el5.i386.rpm

 

x86_64:

quota-3.13-8.el5.x86_64.rpm

quota-debuginfo-3.13-8.el5.x86_64.rpm

 

Red Hat Enterprise Linux (v. 5 server):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/quota-3.13-8.el5.src.rpm

 

i386:

quota-3.13-8.el5.i386.rpm

quota-debuginfo-3.13-8.el5.i386.rpm

 

ia64:

quota-3.13-8.el5.ia64.rpm

quota-debuginfo-3.13-8.el5.ia64.rpm

 

ppc:

quota-3.13-8.el5.ppc.rpm

quota-debuginfo-3.13-8.el5.ppc.rpm

 

s390x:

quota-3.13-8.el5.s390x.rpm

quota-debuginfo-3.13-8.el5.s390x.rpm

 

x86_64:

quota-3.13-8.el5.x86_64.rpm

quota-debuginfo-3.13-8.el5.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://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2012-3417.html

https://access.redhat.com/security/updates/classification/#low

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2013 Red Hat, Inc.

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