LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Advisory Watch: August 29th, 2014
Linux Security Week: August 25th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Red Hat: 2012:0810-04: busybox: Low Advisory Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
RedHat Linux Updated busybox packages that fix two security issues and several bugs are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low [More...]
=====================================================================
                   Red Hat Security Advisory

Synopsis:          Low: busybox security and bug fix update
Advisory ID:       RHSA-2012:0810-04
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-0810.html
Issue date:        2012-06-20
CVE Names:         CVE-2006-1168 CVE-2011-2716 
=====================================================================

1. Summary:

Updated busybox packages that fix two security issues and several bugs are
now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having low
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

BusyBox provides a single binary that includes versions of a large number
of system commands, including a shell. This can be very useful for
recovering from certain types of system failures, particularly those
involving broken shared libraries.

A buffer underflow flaw was found in the way the uncompress utility of
BusyBox expanded certain archive files compressed using Lempel-Ziv
compression. If a user were tricked into expanding a specially-crafted
archive file with uncompress, it could cause BusyBox to crash or,
potentially, execute arbitrary code with the privileges of the user
running BusyBox. (CVE-2006-1168)

The BusyBox DHCP client, udhcpc, did not sufficiently sanitize certain
options provided in DHCP server replies, such as the client hostname. A
malicious DHCP server could send such an option with a specially-crafted
value to a DHCP client. If this option's value was saved on the client
system, and then later insecurely evaluated by a process that assumes the
option is trusted, it could lead to arbitrary code execution with the
privileges of that process. Note: udhcpc is not used on Red Hat Enterprise
Linux by default, and no DHCP client script is provided with the busybox
packages. (CVE-2011-2716)

This update also fixes the following bugs:

* Prior to this update, the "findfs" command did not recognize Btrfs
partitions. As a consequence, an error message could occur when dumping a
core file. This update adds support for recognizing such partitions so
the problem no longer occurs. (BZ#751927)

* If the "grep" command was used with the "-F" and "-i" options at the
same time, the "-i" option was ignored. As a consequence, the "grep -iF"
command incorrectly performed a case-sensitive search instead of an
insensitive search. A patch has been applied to ensure that the combination
of the "-F" and "-i" options works as expected. (BZ#752134)

* Prior to this update, the msh shell did not support the "set -o pipefail"
command. This update adds support for this command. (BZ#782018)

* Previously, the msh shell could terminate unexpectedly with a
segmentation fault when attempting to execute an empty command as a result
of variable substitution (for example msh -c '$nonexistent_variable').
With this update, msh has been modified to correctly interpret such
commands and no longer crashes in this scenario. (BZ#809092)

* Previously, the msh shell incorrectly executed empty loops. As a
consequence, msh never exited such a loop even if the loop condition was
false, which could cause scripts using the loop to become unresponsive.
With this update, msh has been modified to execute and exit empty loops
correctly, so that hangs no longer occur. (BZ#752132)

All users of busybox are advised to upgrade to these updated packages,
which contain backported patches to fix 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/):

201919 - CVE-2006-1168 ncompress: .bss buffer underflow in decompression
725364 - CVE-2011-2716 busybox: udhcpc insufficient checking of DHCP options
752134 - "busybox grep -Fi" doesn't work as expected
809092 - msh crasher bug

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-1.15.1-15.el6.i686.rpm

x86_64:
busybox-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-petitboot-1.15.1-15.el6.i686.rpm

x86_64:
busybox-petitboot-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

x86_64:
busybox-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

x86_64:
busybox-petitboot-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-1.15.1-15.el6.i686.rpm

ppc64:
busybox-1.15.1-15.el6.ppc64.rpm

s390x:
busybox-1.15.1-15.el6.s390x.rpm

x86_64:
busybox-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-petitboot-1.15.1-15.el6.i686.rpm

ppc64:
busybox-petitboot-1.15.1-15.el6.ppc64.rpm

s390x:
busybox-petitboot-1.15.1-15.el6.s390x.rpm

x86_64:
busybox-petitboot-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-1.15.1-15.el6.i686.rpm

x86_64:
busybox-1.15.1-15.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/busybox-1.15.1-15.el6.src.rpm

i386:
busybox-petitboot-1.15.1-15.el6.i686.rpm

x86_64:
busybox-petitboot-1.15.1-15.el6.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-2006-1168.html
https://www.redhat.com/security/data/cve/CVE-2011-2716.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 2012 Red Hat, Inc.
 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Weekend Edition
How Cops and Hackers Could Abuse California’s New Phone Kill-Switch Law
Why Russian hackers are beating us
DQ Breach? HQ Says No, But Would it Know?
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.