Bulletin Number: 00194

Title: BIND

Cross-Ref: CERT Advisory CA-99-14

Create Date: March 29, 2000

Date: March 29, 2000

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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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      http://sunsolve.sun.com/pgpkey.txt
		    	    	    
E.  To report or inquire about a security problem with Sun software, contact 
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        - Your representative computer security response team, such as CERT 
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