Published:
30 March 2000
Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2000.061 -- Sun Security Bulletin #00194
BIND
31 March 2000
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Sun Microsystems, Inc. has released the following bulletin concerning
patches that are now available for Solaris 7 for four of the
vulnerabilities in BIND as reported in CERT Advisory CA-99-14
(Redistributed as AUSCERT ESB-1999.170). These vulnerabilities may allow a
malicious user to perform a Denial of Service (DoS) attack against affected
systems.
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________________________________________________________________________________
Sun Microsystems, Inc. Security Bulletin
Bulletin Number: #00194
Date: March 29, 2000
Cross-Ref: CERT Advisory CA-99-14
Title: BIND
________________________________________________________________________________
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,
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If any of the above provisions are held to be in violation of applicable law,
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such jurisdiction.
________________________________________________________________________________
1. Bulletin Topics
Sun announces the release of patches for Solaris(tm) 7 which relate to
four vulnerabilities in BIND reported in CERT Advisory CA-99-14.
Sun recommends that you install the patches listed in section 4
immediately on systems running Solaris 7 with Sun's implementation
of BIND.
2. Who is Affected
Vulnerable: Solaris 7 running Sun's implementation of BIND
Not vulnerable: All other supported versions of Solaris.
3. Understanding the Vulnerabilities
The Berkeley Internet Name Domain (BIND) is an implementation of the
Domain Name System (DNS) protocols.
CERT Advisory CA-99-14 describes six vulnerabilities in certain versions
of BIND. Solaris 7 is vulnerable to the following four vulnerabilities
reported in the CERT advisory.
Vulnerability #3: the "so_linger bug"
Remote attackers may degrade the performance of named.
Vulnerability #4: the "fdmax bug"
Remote attackers may cause named to crash.
Vulnerability #5: the "maxdname bug"
Remote attackers may cause named to crash.
Vulnerability #6: the "naptr bug"
Remote attackers may cause named to crash.
The CERT advisory CA-99-14 is available at:
ftp://info.cert.org/pub/cert_advisories/CA-99-14-bind.txt
No other supported versions of Solaris (including Solaris 8) are
affected by any of the six vulnerabilities reported in the CERT
advisory.
4. List of Patches
The following patches are available in relation to the above problems.
Solaris version Patch ID
_______________ _________
Solaris 7 (SPARC) 107018-02
106938-03
Solaris 7 (Intel) 107019-02
106939-03
_______________________________________________________________________________
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
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________________________________________________________________________________
Copyright 2000 Sun Microsystems, Inc. All rights reserved. Sun,
Sun Microsystems, Solaris and SunOS are trademarks or registered trademarks
of Sun Microsystems, Inc. in the United States and other countries. This
Security Bulletin may be reproduced and distributed, provided that this
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