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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2000.135 -- CIAC Bulletin K-050 NXT BIND 8.2.x Overflow Vulnerability 14 June 2000 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: BIND 8.2.x Vendor: BIND Operating System: Linux BSD Unix Platform: N/A Impact: Root Compromise Access Required: Remote Ref: ESB-1999.170 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- __________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_ / \___ __|__ / \___ __________________________________________________________ INFORMATION BULLETIN NXT BIND 8.2.x Overflow Vulnerability June 13, 2000 13:00 GMT Number K-050 ______________________________________________________________________________ PROBLEM: BIND versions 8.2, 8.2.1 and 8.2.2 will allow a buffer overflow condition, resulting in illegal remote access. PLATFORM: Red Hat, Solaris, FreeBSD, OpenBSD, NetBSD, Slackware. DAMAGE: A remote user will be able to gain root on the DNS server. SOLUTION: Upgrade BIND to version 8.2.2-P2. Preferably upgrade to the latest version 8.2.2-P5. ______________________________________________________________________________ VULNERABILITY The risk is HIGH. The exploit is publicly available. ASSESSMENT: ______________________________________________________________________________ http://www.ciac.org/ciac/bulletins/k-050.shtml _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Security Focus for 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 FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@llnl.gov For emergencies and off-hour assistance, DOE, DOE contractor sites, and the NIH may contact CIAC 24-hours a day. During off hours (5PM - 8AM PST), use one of the following methods to contact CIAC: 1. Call the CIAC voice number 925-422-8193 and leave a message, or 2. Call 888-449-8369 to send a Sky Page to the CIAC duty person or 3. Send e-mail to 4498369@skytel.com, or 4. Call 800-201-9288 for the CIAC Project Leader. Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ (or http://ciac.llnl.gov -- they're the same machine) Anonymous FTP: ftp.ciac.org (or ciac.llnl.gov -- they're the same machine) Modem access: +1 (925) 423-4753 (28.8K baud) +1 (925) 423-3331 (28.8K baud) 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. LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC) K-039: VBS.LoveLetter.A Worm K-040: Netscape Navigator Improperly Validates SSL Sessions K-041: Denial of Service and File Reading Vulnerabilities K-042: Microsoft "Office 2000 UA Control" Vulnerability K-043: Buffer Overrun Vulnerabilities in Kerberos K-044: Microsoft: Vulnerabilities in Internet Explorer K-045: SGI Vulnerability in infosrch.cgi K-046: 386-BSD Based Operating Systems - IPCS Vulnerability K-048: Permissions Problems with FrontPage Extensions K-049: Microsoft IE "SSL Certificate Validation" Vulnerability - -----BEGIN PGP SIGNATURE----- Version: 4.0 Business Edition iQCVAwUBOUaY7rnzJzdsy3QZAQF3nQQA5Dj1LZFdRo+Io+wv0Ba2vV/I6sMvcMAU miTmx4wMW0lMrk3rAeplwhHJKX2x9YBRwFucmUbpo6W36EDgnYxjj3wqoZeCLqFM 49gMXI6flFzcXAmyVSqqgvUnrGSqtsKs/tN2gU0ppzoKFGYTwcR+oh7bIFAaA2ug JSiIb+BZ8Vw= =3w4N - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- This security bulletin is provided as a service to AusCERT's members. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBOXXTQyh9+71yA2DNAQEhygP9HEzDfoFQFLMOgD5FkTKk+0mHdiNrKDvs 6C98+VglU82sCd0ovNGxevSWr+rD3JzvjwTuoMh8M6N+CGDl/SMvcoaMqHc/MIOZ tNQZZp/sKb5t050T+r/Zg8JZBQk9f1bRlYqFHPXwy7X8yFGD3Tg9qMMnxLfOpbEp KOcfkCtgTgg= =fcCm -----END PGP SIGNATURE-----