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Category:   Application (Generic)  >   CUPS Vendors:   Easy Software Products
(Red Hat Issues Fix) CUPS Double Free Bug in process_browse_data() May Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1019476
SecurityTracker URL:  http://securitytracker.com/id/1019476
CVE Reference:   CVE-2008-0882   (Links to External Site)
Date:  Feb 21 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.3.5
Description:   A vulnerability was reported in CUPS (Common UNIX Printing System). A remote user can execute arbitrary code on the target system.

A remote user can send specially crafted UDP IPP packets to trigger a double free error and cause the daemon to crash or potentially execute arbitrary code on the target system. The code will run with the privileges of the target service.

The addition and removal of remote shared printers can trigger the flaw.
Impact:   A remote user can execute arbitrary code on the target system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0157.html
Vendor URL:  www.cups.org/str.php?L2656 (Links to External Site)
Cause:   State error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Feb 21 2008 CUPS Double Free Bug in process_browse_data() May Let Remote Users Execute Arbitrary Code


 Source Message Contents
Date:  Thu, 21 Feb 2008 16:32:36 -0500
Subject:  [RHSA-2008:0157-01] Important: cups security update


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

Synopsis:          Important: cups security update
Advisory ID:       RHSA-2008:0157-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0157.html
Issue date:        2008-02-21
CVE Names:         CVE-2008-0882 
=====================================================================

1. Summary:

Updated cups packages that fix a security issue are now available for Red
Hat Enterprise Linux 5.

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

3. Description:

The Common UNIX Printing System (CUPS) provides a portable printing layer
for UNIX(R) operating systems. The Internet Printing Protocol (IPP) is a
standard network protocol for remote printing, as well as managing print
jobs.

A flaw was found in the way CUPS handles the addition and removal of remote
shared printers via IPP. A remote attacker could send malicious UDP IPP
packets causing the CUPS daemon to crash. (CVE-2008-0882)

Note: the default configuration of CUPS on Red Hat Enterprise Linux 5 will
only accept requests of this type from the local subnet. This issue did not
affect the versions of CUPS as shipped with Red Hat Enterprise Linux 3 or
4.

All cups users are advised to upgrade to these updated packages, which
contain a backported patch 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/):

433758 - CVE-2008-0882 cups: double free vulnerability in process_browse_data()

6. Package List:

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.2.4-11.14.el5_1.4.src.rpm

i386:
cups-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-libs-1.2.4-11.14.el5_1.4.i386.rpm
cups-lpd-1.2.4-11.14.el5_1.4.i386.rpm

x86_64:
cups-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-libs-1.2.4-11.14.el5_1.4.i386.rpm
cups-libs-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-lpd-1.2.4-11.14.el5_1.4.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/cups-1.2.4-11.14.el5_1.4.src.rpm

i386:
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-devel-1.2.4-11.14.el5_1.4.i386.rpm

x86_64:
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-devel-1.2.4-11.14.el5_1.4.i386.rpm
cups-devel-1.2.4-11.14.el5_1.4.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/cups-1.2.4-11.14.el5_1.4.src.rpm

i386:
cups-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-devel-1.2.4-11.14.el5_1.4.i386.rpm
cups-libs-1.2.4-11.14.el5_1.4.i386.rpm
cups-lpd-1.2.4-11.14.el5_1.4.i386.rpm

ia64:
cups-1.2.4-11.14.el5_1.4.ia64.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.ia64.rpm
cups-devel-1.2.4-11.14.el5_1.4.ia64.rpm
cups-libs-1.2.4-11.14.el5_1.4.i386.rpm
cups-libs-1.2.4-11.14.el5_1.4.ia64.rpm
cups-lpd-1.2.4-11.14.el5_1.4.ia64.rpm

ppc:
cups-1.2.4-11.14.el5_1.4.ppc.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.ppc.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.ppc64.rpm
cups-devel-1.2.4-11.14.el5_1.4.ppc.rpm
cups-devel-1.2.4-11.14.el5_1.4.ppc64.rpm
cups-libs-1.2.4-11.14.el5_1.4.ppc.rpm
cups-libs-1.2.4-11.14.el5_1.4.ppc64.rpm
cups-lpd-1.2.4-11.14.el5_1.4.ppc.rpm

s390x:
cups-1.2.4-11.14.el5_1.4.s390x.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.s390.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.s390x.rpm
cups-devel-1.2.4-11.14.el5_1.4.s390.rpm
cups-devel-1.2.4-11.14.el5_1.4.s390x.rpm
cups-libs-1.2.4-11.14.el5_1.4.s390.rpm
cups-libs-1.2.4-11.14.el5_1.4.s390x.rpm
cups-lpd-1.2.4-11.14.el5_1.4.s390x.rpm

x86_64:
cups-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.i386.rpm
cups-debuginfo-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-devel-1.2.4-11.14.el5_1.4.i386.rpm
cups-devel-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-libs-1.2.4-11.14.el5_1.4.i386.rpm
cups-libs-1.2.4-11.14.el5_1.4.x86_64.rpm
cups-lpd-1.2.4-11.14.el5_1.4.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-2008-0882
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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