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Category:   Application (Generic)  >   foomatic-filters Vendors:   linuxprinting.org
(Red Hat Issues Fix) Foomatic Input Validation Flaw Lets Remote Users Inject Operating System Commands
SecurityTracker Alert ID:  1025878
SecurityTracker URL:  http://securitytracker.com/id/1025878
CVE Reference:   CVE-2011-2697   (Links to External Site)
Date:  Aug 1 2011
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Foomatic. A remote user can execute arbitrary commands on the target system.

The foomatic-rip print filter does not properly validate user-supplied input. A remote user can submit a print job with specially crafted username, title, or job options to cause the filter to use a specified PostScript printer description (PPD) file and potentially execute arbitrary commands.

Impact:   A remote user can execute arbitrary commands on the target system.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2011-1109.html

Vendor URL:  www.linuxfoundation.org/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4, 5

Message History:   This archive entry is a follow-up to the message listed below.
Aug 1 2011 Foomatic Input Validation Flaw Lets Remote Users Inject Operating System Commands



 Source Message Contents

Subject:  [RHSA-2011:1109-01] Moderate: foomatic security update

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: foomatic security update
Advisory ID:       RHSA-2011:1109-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1109.html
Issue date:        2011-08-01
CVE Names:         CVE-2011-2697 
=====================================================================

1. Summary:

An updated foomatic package that fixes one security issue is now available
for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having moderate
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 AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

Foomatic is a comprehensive, spooler-independent database of printers,
printer drivers, and driver descriptions. The package also includes
spooler-independent command line interfaces to manipulate queues and to
print files and manipulate print jobs. foomatic-rip is a print filter
written in Perl.

An input sanitization flaw was found in the foomatic-rip print filter. An
attacker could submit a print job with the username, title, or job options
set to appear as a command line option that caused the filter to use a
specified PostScript printer description (PPD) file, rather than the
administrator-set one. This could lead to arbitrary code execution with the
privileges of the "lp" user. (CVE-2011-2697)

All foomatic users should upgrade to this updated package, which contains
a backported patch to resolve this issue.

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/kb/docs/DOC-11259

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

721001 - CVE-2011-2697 foomatic: Improper sanitization of command line option in foomatic-rip

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/foomatic-3.0.2-3.2.el4.src.rpm

i386:
foomatic-3.0.2-3.2.el4.i386.rpm
foomatic-debuginfo-3.0.2-3.2.el4.i386.rpm

ia64:
foomatic-3.0.2-3.2.el4.ia64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.ia64.rpm

ppc:
foomatic-3.0.2-3.2.el4.ppc.rpm
foomatic-debuginfo-3.0.2-3.2.el4.ppc.rpm

s390:
foomatic-3.0.2-3.2.el4.s390.rpm
foomatic-debuginfo-3.0.2-3.2.el4.s390.rpm

s390x:
foomatic-3.0.2-3.2.el4.s390x.rpm
foomatic-debuginfo-3.0.2-3.2.el4.s390x.rpm

x86_64:
foomatic-3.0.2-3.2.el4.x86_64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/foomatic-3.0.2-3.2.el4.src.rpm

i386:
foomatic-3.0.2-3.2.el4.i386.rpm
foomatic-debuginfo-3.0.2-3.2.el4.i386.rpm

x86_64:
foomatic-3.0.2-3.2.el4.x86_64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/foomatic-3.0.2-3.2.el4.src.rpm

i386:
foomatic-3.0.2-3.2.el4.i386.rpm
foomatic-debuginfo-3.0.2-3.2.el4.i386.rpm

ia64:
foomatic-3.0.2-3.2.el4.ia64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.ia64.rpm

x86_64:
foomatic-3.0.2-3.2.el4.x86_64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/foomatic-3.0.2-3.2.el4.src.rpm

i386:
foomatic-3.0.2-3.2.el4.i386.rpm
foomatic-debuginfo-3.0.2-3.2.el4.i386.rpm

ia64:
foomatic-3.0.2-3.2.el4.ia64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.ia64.rpm

x86_64:
foomatic-3.0.2-3.2.el4.x86_64.rpm
foomatic-debuginfo-3.0.2-3.2.el4.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/foomatic-3.0.2-38.3.el5_7.1.src.rpm

i386:
foomatic-3.0.2-38.3.el5_7.1.i386.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.i386.rpm

x86_64:
foomatic-3.0.2-38.3.el5_7.1.x86_64.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/foomatic-3.0.2-38.3.el5_7.1.src.rpm

i386:
foomatic-3.0.2-38.3.el5_7.1.i386.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.i386.rpm

ia64:
foomatic-3.0.2-38.3.el5_7.1.ia64.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.ia64.rpm

ppc:
foomatic-3.0.2-38.3.el5_7.1.ppc.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.ppc.rpm

s390x:
foomatic-3.0.2-38.3.el5_7.1.s390x.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.s390x.rpm

x86_64:
foomatic-3.0.2-38.3.el5_7.1.x86_64.rpm
foomatic-debuginfo-3.0.2-38.3.el5_7.1.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-2697.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2011 Red Hat, Inc.
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