Note: This is an archival copy of Security Sun Alert 275230 as previously published on http://sunsolve.sun.com.|
Latest version of this security advisory is available from http://support.oracle.com as Sun Alert 1021763.1.
Date of Resolved Release
A "use-after-free" security vulnerability has been identified in the Common Unix Printing System (CUPS):
A "use-after-free" security vulnerability has been identified in the Common Unix Printing System (CUPS) related to handling references in its file descriptors-handling interface. This vulnerability may allow a local or remote unprivileged user to crash cupsd(8) via a specially crafted query to get the list of current print jobs for a specific printer, resulting in a Denial of Service (DoS).
This issue is also described in the following document:
CVE-2009-3553 at: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3553
2. Contributing Factors
This issue can occur in the following releases:
Note 2: OpenSolaris distributions may include additional bug fixes above and beyond the build from which it was derived. To determine the base build of OpenSolaris, the following command can be used:
$ uname -vNote 3: This vulnerability only affects OpenSolaris systems which have installed the CUPS package (SUNWcups). The SUNWcups package is not installed by default. To determine if the SUNWcups package is installed, the following command can be run:
$ pkg info SUNWcupsNote 4: This vulnerability only affects OpenSolaris systems which have configured and enabled CUPS for printing. To determine if CUPS has been enabled, the following command can be run:
$ svcs cups/in-lpd
If the described issue has been exploited to cause a Denial of Service (DoS), cupsd(8) will crash, potentially leaving a core file depending on the system configuration.
There is no workaround for this issue. Please see the Resolution section below.
This issue is addressed in the following releases:
Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, CA 95054 U.S.A. All rights reserved.
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