Note: This is an archival copy of Security Sun Alert 261088 as previously published on http://sunsolve.sun.com.
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1020578.1.
Article ID : 1020578.1
Article Type : Sun Alerts (SURE)
Last reviewed : 2009-06-09
Audience : PUBLIC
Copyright Notice: Copyright © 2010, Oracle Corporation and/or its affiliates.

Multiple Security Vulnerabilities in Common UNIX Printing System (CUPS) May Allow a Remote User to Execute Arbitrary Code



Category
Security

Release Phase
Resolved

Bug Id
6765712

Product
OpenSolaris

Date of Resolved Release
10-Jun-2009

Multiple Security Vulnerabilities in Common UNIX Printing System (CUPS) May Allow a Remote User to Execute Arbitrary Code

1. Impact

The Common UNIX Printing System (CUPS) as shipped with OpenSolaris is impacted by multiple security vulnerabilities affecting the "imagetops", "texttops" and "hpgltops" filters. These vulnerabilities may allow a local or remote unprivileged user to execute arbitrary code with the privileges of the CUPS service (which usually runs as root).

These issues are described in the following documents:



2. Contributing Factors

These issues can occur in the following releases:

SPARC Platform:
  • OpenSolaris based upon builds snv_87 through snv_102
x86 Platform:
  • OpenSolaris based upon builds snv_87 through snv_102
Notes:

1. Solaris 8, 9, and 10 are not impacted by these issues.

OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. The base build can be derived as follows:
$ uname -v
snv_101
2. These vulnerabilities only affect systems which are configured to use the CUPS software. This can be determined by checking the status of the appropriate SMF (smf(5)) service as in the following example:
% svcs application/cups/in-lpd
STATE          STIME    FMRI
enabled       Mar_19   svc:/application/cups/in-lpd:default
3. A system is only vulnerable to a remote user while sharing a printer(s) on the network. To determine if a printer is being network shared, the following command can be run:
# grep Listen /etc/cups/cupsd.conf
Listen localhost:631
Listen /var/run/cups/cups.sock
In the case above, it is listening only on the local interfaces.

3. Symptoms

There are no predictable symptoms that would indicate the described issues have been exploited.

4. Workaround

There is no workaround for these issues. Please see the "Resolution" section below.

5. Resolution

These issues are addressed in the following releases:

SPARC Platform:
  • OpenSolaris based upon builds snv_103 or later
x86 Platform:
  • OpenSolaris based upon builds snv_103 or later
For more information on Security Sun Alerts, see 1009886.1.

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