__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Center ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Sun in.lpd Vulnerability August 31, 2001 13:00 GMT Number L-138 ______________________________________________________________________________ PROBLEM: A buffer overflow condition exists in the in.lpd daemon which provides a remote interface for systems to interact with a local spooling system. PLATFORM: SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6, 5.6_x86 DAMAGE: Through utilization of the buffer overflow vulnerability a malicious party could cause the in.lpd daemon to fail or elevate their privileges on the system. A root-level compromise is possible. SOLUTION: Apply the patch as specified by Sun. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. The vulnerability has been publicly reported. ASSESSMENT: ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/l-138.shtml ORIGINAL BULLETIN: http://xforce.iss.net/alerts/advise80.php. Cert BULLETIN: http://www.cert.org/advisories/CA-2001-15.html Sun Bulletin http://sunsolve.sun.com/security PATCHES: http://sunsolve.sun.com/securitypatch ______________________________________________________________________________ [****** Start Sun Bulletin ******] ________________________________________________________________________________ Sun Microsystems, Inc. Security Bulletin Bulletin Number: #00206 Date: August 30, 2001 Cross-Ref: CERT Advisory CA-2001-15 Title: in.lpd ________________________________________________________________________________ The information contained in this Security Bulletin is provided "AS IS." Sun makes no warranties of any kind whatsoever with respect to the information contained in this Security Bulletin. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY WARRANTY OF NON-INFRINGEMENT OR IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY DISCLAIMED AND EXCLUDED TO THE EXTENT ALLOWED BY APPLICABLE LAW. IN NO EVENT WILL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES HOWEVER CAUSED AND REGARDLESS OF ANY THEORY OF LIABILITY ARISING OUT OF THE USE OF OR INABILITY TO USE THE INFORMATION CONTAINED IN THIS SECURITY BULLETIN, EVEN IF SUN MICROSYSTEMS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. If any of the above provisions are held to be in violation of applicable law, void, or unenforceable in any jurisdiction, then such provisions are waived to the extent necessary for this disclaimer to be otherwise enforceable in such jurisdiction. ________________________________________________________________________________ 1. Bulletins Topics Sun announces the release of patches for Solaris(tm) 8, 7, and 2.6 (SunOS(tm) 5.8, 5.7, and 5.6) which relate to an in.lpd vulnerability reported in CERT CA-2001-15. Sun recommends that you install the patches listed in section 4 immediately on systems running SunOS 5.8, 5.7, and 5.6 which use in.lpd. 2. Who is Affected Vulnerable: SunOS 5.8, 5.8_x86, 5.7, 5.7_x86, 5.6, 5.6_x86 3. Understanding the Vulnerability The in.lpd daemon is the BSD print protocol daemon. The in.lpd daemon implements the network listening service for the BSD print protocol specified in RFC 1179. The BSD print protocol provides a remote interface for systems to interact with a local spooling system. CERT Advisory CA-2001-15 describes a buffer overflow in the in.lpd daemon which may crash in.lpd or allow arbitrary code to be executed with elevated privileges on the victim system. The issue was discovered by ISS X-Force who published an advisory at: http://xforce.iss.net/alerts/advise80.php CERT Advisory CA-2001-15 is available from: http://www.cert.org/advisories/CA-2001-15.html 4. List of Patches The following patches are available in relation to the above problem. OS Version Patch ID __________ _________ SunOS 5.8 109320-04 SunOS 5.8_x86 109321-04 SunOS 5.7 107115-09 SunOS 5.7_x86 107116-09 SunOS 5.6 106235-09 SunOS 5.6_x86 106236-09 _______________________________________________________________________________ APPENDICES A. Patches listed in this bulletin are available to all Sun customers at: http://sunsolve.sun.com/securitypatch B. Checksums for the patches listed in this bulletin are available at: ftp://sunsolve.sun.com/pub/patches/CHECKSUMS C. Sun security bulletins are available at: http://sunsolve.sun.com/security D. Sun Security Coordination Team's PGP key is available at: http://sunsolve.sun.com/pgpkey.txt E. To report or inquire about a security problem with Sun software, contact one or more of the following: - Your local Sun answer centers - Your representative computer security response team, such as CERT - Sun Security Coordination Team. Send email to: security-alert@sun.com F. 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[****** End Sun Bulletin ********] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Sun Microsystems for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Center, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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