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AUSCERT External Security Bulletin Redistribution
ESB-2009.1228.2
A Security Vulnerability in the Solaris Print Service (in.lpd(1M)) May Lead
to a Denial of Service (DoS) Condition
28 August 2009
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AusCERT Security Bulletin Summary
---------------------------------
Product: Solaris Print Service
Publisher: Sun Microsystems
Operating System: Solaris
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2009-2972
Original Bulletin:
http://sunsolve.sun.com/search/printfriendly.do?assetkey=1-66-264608-1
Revision History: August 28 2009: Added CVE Reference
August 27 2009: Initial Release
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Solution Type: Sun Alert
Solution 264608 : A Security Vulnerability in the Solaris Print
Service (in.lpd(1M)) May Lead to a Denial of Service (DoS) Condition
Bug ID: 4635978
Product:
Solaris 8 Operating System
Solaris 9 Operating System
Date of Resolved Release: 25-Aug-2009
SA Document Body
A Security Vulnerability in the Solaris Print Service (in.lpd(1M)) May Lead to
a Denial of Service (DoS) Condition
1. Impact
A security vulnerability in the Solaris print service (see in.lpd(1M))
may allow a local or remote unprivileged user to cause the system to
slow down and become unresponsive. This is a type of Denial of Service
(DoS).
2. Contributing Factors
This issue can occur in the following releases:
SPARC Platform
* Solaris 8 without patch 109320-23
* Solaris 9 without patch 113329-07
x86 Platform
* Solaris 8 without patch 109321-23
* Solaris 9 without patch 114980-09
Notes:
1. Solaris 8 entered EOSL Phase 2 on 1 April 2009. Entitlement to
patches developed on or after 1 April 2009 requires the purchase of
the Solaris 8 Vintage Patch Service. See note in section 5 for more
details.
2. Solaris 10 and OpenSolaris are not impacted by this issue.
3. Symptoms
If the described issue occurs, the system may slow down or become
completely unresponsive.
4. Workaround
To workaround the described issue until the resolution patches can be
applied, the BSD print protocol adaptor (in.lpd(1M)) may be disabled
by using the following steps:
1. Edit the "/etc/inetd.conf" file and comment out the following line
by adding the "#" symbol to the beginning of the line as shown:
#printer stream tcp6 nowait root /usr/lib/print/in.lpd in.lpd
2. Restart the inetd(1M) process in order to read the newly modified
"/etc/inetd.conf" file. This may be done using the following command:
# /usr/bin/pkill -HUP inetd
5. Resolution
This issue is addressed in the following releases:
SPARC Platform
* Solaris 8 with patch 109320-23 or later
* Solaris 9 with patch 113329-07 or later
x86 Platform
* Solaris 8 with patch 109321-23 or later
* Solaris 9 with patch 114980-09 or later
Note: The READMEs of Solaris 8 patches developed on or after 1 April
2009 are available to all customers. However, Solaris 8 entered EOSL
Phase 2 on April 1, 2009 and thus entitlement for these patches,
including those that fix security vulnerabilities, requires the
purchase of the Solaris 8 Vintage Patch Service. More information
about the Solaris 8 Vintage Patch Service is available at:
http://www.sun.com/service/eosl/Solaris8.html
For more information on Security Sun Alerts, see Technical
Instruction ID 213557.
This Sun Alert notification is being provided to you on an "AS IS"
basis. This Sun Alert notification may contain information provided by
third parties. The issues described in this Sun Alert notification may
or may not impact your system(s). Sun makes no representations,
warranties, or guarantees as to the information contained herein. ANY
AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
This Sun Alert notification contains Sun proprietary and confidential
information. It is being provided to you pursuant to the provisions of
your agreement to purchase services from Sun, or, if you do not have
such an agreement, the Sun.com Terms of Use. This Sun Alert
notification may only be used for the purposes contemplated by these
agreements.
Copyright 2000-2009 Sun Microsystems, Inc., 4150 Network Circle, Santa
Clara, CA 95054 U.S.A. All rights reserved
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