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Category:   Application (Generic)  >   CUPS Vendors:   Easy Software Products
(Red Hat Issues Fix) CUPS Bugs in Adding/Deleting Shared Printers Lets Remote Users Deny Service
SecurityTracker Alert ID:  1019498
SecurityTracker URL:  http://securitytracker.com/id/1019498
CVE Reference:   CVE-2008-0596, CVE-2008-0597   (Links to External Site)
Date:  Feb 25 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in CUPS (Common UNIX Printing System). A remote user can cause denial of service conditions.

A remote user can send specially crafted IPP packets to cause the target CUPS service to crash.

A remote user can trigger a memory leak, causing the target daemon to consume all available memory and crash [CVE-2008-0596].

A remote user can add or remove shared printers to cause the target service to dereference already freed memory and crash [CVE-2008-0597].

These vulnerabilities were reported by Red Hat as affecting older versions of CUPS distributed with Red Hat Enterprise Linux.
Impact:   A remote user can cause the target service to crash.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0153.html
Vendor URL:  www.cups.org/ (Links to External Site)
Cause:   Access control error, Resource error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Feb 25 2008 CUPS Bugs in Adding/Deleting Shared Printers Lets Remote Users Deny Service


 Source Message Contents
Date:  Mon, 25 Feb 2008 09:24:14 -0500
Subject:  [RHSA-2008:0153-01] Important: cups security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Important: cups security update
Advisory ID:       RHSA-2008:0153-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0153.html
Issue date:        2008-02-25
CVE Names:         CVE-2008-0596 CVE-2008-0597 
=====================================================================

1. Summary:

Updated cups packages that fixes two security issues and a bug are now
available for Red Hat Enterprise Linux 3.

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

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

3. Description:

The Common UNIX Printing System (CUPS) provides a portable printing layer
for UNIX(R) operating systems.

A flaw was found in the way CUPS handled the addition and removal of remote
shared printers via IPP.  A remote attacker could send malicious UDP IPP
packets causing the CUPS daemon to attempt to dereference already freed
memory and crash. (CVE-2008-0597)

A memory management flaw was found in the way CUPS handled the addition and
removal of remote shared printers via IPP.  When shared printer was
removed, allocated memory was not properly freed, leading to a memory leak
possibly causing CUPS daemon crash after exhausting available memory.
(CVE-2008-0596)

These issues were found during the investigation of CVE-2008-0882, which
did not affect Red Hat Enterprise Linux 3. 

Note that the default configuration of CUPS on Red Hat Enterprise Linux
3 allow requests of this type only from the local subnet.

In addition, these updated cups packages fix a bug that occurred when using
the CUPS polling daemon. Excessive debugging log information was saved to
the error_log file regardless of the LogLevel setting, which filled up disk
space rapidly.

All CUPS users are advised to upgrade to these updated packages, which
contain backported patches to resolve this issue.

4. 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

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

246545 - Cups fills up logfiles if queue is turned on
433825 - CVE-2008-0596 cups: memory leak handling IPP browse requests
433847 - CVE-2008-0597 cups: dereference of free'd memory handling IPP browse requests

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/cups-1.1.17-13.3.51.src.rpm

i386:
cups-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-devel-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.i386.rpm

ia64:
cups-1.1.17-13.3.51.ia64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.ia64.rpm
cups-devel-1.1.17-13.3.51.ia64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.ia64.rpm

ppc:
cups-1.1.17-13.3.51.ppc.rpm
cups-debuginfo-1.1.17-13.3.51.ppc.rpm
cups-debuginfo-1.1.17-13.3.51.ppc64.rpm
cups-devel-1.1.17-13.3.51.ppc.rpm
cups-libs-1.1.17-13.3.51.ppc.rpm
cups-libs-1.1.17-13.3.51.ppc64.rpm

s390:
cups-1.1.17-13.3.51.s390.rpm
cups-debuginfo-1.1.17-13.3.51.s390.rpm
cups-devel-1.1.17-13.3.51.s390.rpm
cups-libs-1.1.17-13.3.51.s390.rpm

s390x:
cups-1.1.17-13.3.51.s390x.rpm
cups-debuginfo-1.1.17-13.3.51.s390.rpm
cups-debuginfo-1.1.17-13.3.51.s390x.rpm
cups-devel-1.1.17-13.3.51.s390x.rpm
cups-libs-1.1.17-13.3.51.s390.rpm
cups-libs-1.1.17-13.3.51.s390x.rpm

x86_64:
cups-1.1.17-13.3.51.x86_64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.x86_64.rpm
cups-devel-1.1.17-13.3.51.x86_64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/cups-1.1.17-13.3.51.src.rpm

i386:
cups-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-devel-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.i386.rpm

x86_64:
cups-1.1.17-13.3.51.x86_64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.x86_64.rpm
cups-devel-1.1.17-13.3.51.x86_64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/cups-1.1.17-13.3.51.src.rpm

i386:
cups-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-devel-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.i386.rpm

ia64:
cups-1.1.17-13.3.51.ia64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.ia64.rpm
cups-devel-1.1.17-13.3.51.ia64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.ia64.rpm

x86_64:
cups-1.1.17-13.3.51.x86_64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.x86_64.rpm
cups-devel-1.1.17-13.3.51.x86_64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/cups-1.1.17-13.3.51.src.rpm

i386:
cups-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-devel-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.i386.rpm

ia64:
cups-1.1.17-13.3.51.ia64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.ia64.rpm
cups-devel-1.1.17-13.3.51.ia64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.ia64.rpm

x86_64:
cups-1.1.17-13.3.51.x86_64.rpm
cups-debuginfo-1.1.17-13.3.51.i386.rpm
cups-debuginfo-1.1.17-13.3.51.x86_64.rpm
cups-devel-1.1.17-13.3.51.x86_64.rpm
cups-libs-1.1.17-13.3.51.i386.rpm
cups-libs-1.1.17-13.3.51.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0596
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0597
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2008 Red Hat, Inc.
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