__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Debian fsp Buffer Overflow Vulnerability [Debian Security Advisory DSA-416-1] January 8, 2004 22:00 GMT Number O-048 ______________________________________________________________________________ PROBLEM: Debian announced the discovery of a vulnerability in fsp, client utilities for File Service Protocol (FSP), whereby a remote user could both escape from the FSP root directory (CAN-2003-1022), and also overflow a fixed-length buffer to execute arbitrary code (CAN-2004-0011). PLATFORM: Debian GNU/Linux 3.0 (woody) DAMAGE: If successfully exploited, a remote attacker could execute arbitrary code. SOLUTION: - Update the fsp package - Update to version 2.81.b3-3.1woody1 ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote attacker could execute arbitrary ASSESSMENT: code. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/o-048.shtml ORIGINAL BULLETIN: http://www.debian.org/security/2004/dsa-416 CVE/CAN: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= CAN-2003-1022 CAN-2004-0011 ______________________________________________________________________________ [***** Start Debian Security Advisory DSA-416-1 *****] Debian Security Advisory DSA-416-1 fsp -- buffer overflow, directory traversal Date Reported: 06 Jan 2004 Affected Packages: fsp Vulnerable: Yes Security database references: In Mitre's CVE dictionary: CAN-2003-1022, CAN-2004-0011. More information: A vulnerability was discovered in fsp, client utilities for File Service Protocol (FSP), whereby a remote user could both escape from the FSP root directory (CAN-2003-1022), and also overflow a fixed-length buffer to execute arbitrary code (CAN-2004-0011). For the current stable distribution (woody) this problem has been fixed in version 2.81.b3-3.1woody1. For the unstable distribution, this problem is fixed in version 2.81.b18-1. We recommend that you update your fsp package. Fixed in: Debian GNU/Linux 3.0 (woody) Source: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1.dsc http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1.diff.gz http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3.orig.tar.gz Alpha: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_alpha.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_alpha.deb ARM: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_arm.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_arm.deb Intel IA-32: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_i386.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_i386.deb Intel IA-64: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_ia64.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_ia64.deb HPPA: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_hppa.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_hppa.deb Motorola 680x0: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_m68k.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_m68k.deb Big endian MIPS: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_mips.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_mips.deb Little endian MIPS: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_mipsel.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_mipsel.deb PowerPC: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_powerpc.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_powerpc.deb IBM S/390: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_s390.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_s390.deb Sun Sparc: http://security.debian.org/pool/updates/main/f/fsp/ fsp_2.81.b3-3.1woody1_sparc.deb http://security.debian.org/pool/updates/main/f/fsp/ fspd_2.81.b3-3.1woody1_sparc.deb MD5 checksums of the listed files are available in the original advisory. ---------------------------------------------------------------------------- This page is also available in the following languages: Deutsch español français svenska How to set the default document language ---------------------------------------------------------------------------- See the Debian contact page for information on contacting us. Last Modified: Thu, Jan 8 06:35:52 UTC 2004 Copyright © 2004 SPI; See license terms Debian is a registered trademark of Software in the Public Interest, Inc. [***** End Debian Security Advisory DSA-416-1 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Debian for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, 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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