Bulletin Number: 00151

Title: Vulnerability in automounter

Cross-Ref: 

Create Date: August 20, 1997

Date: August 20, 1997

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1.  Bulletins Topics

    Sun announces the release of patches for Solaris 2.5.1, 2.5, 2.4, and 2.3 
    (SunOS 5.5.1, 5.5, 5.4, and 5.3), which relate to a vulnerability in the
    automounter program.

    Sun strongly recommends that you install the patches listed in section 4 
    immediately on systems running SunOS 5.5.1, 5.5, 5.4, and 5.3. 

2.  Who is Affected
	
    Vulnerable:  SunOS versions 5.5.1, 5.5.1_x86, 5.5, 5.5_x86,
                                5.4, 5.4_x86, and 5.3.

    Not vulnerable:  All other supported versions of SunOS
     		
    The vulnerability is fixed in Solaris 2.6.

3.  Understanding the Vulnerability

    The automounter daemon automountd is an RPC server that answers file 
    system mount and unmount requests from the autofs filesystem. Unprivileged
    users may exploit this vulnerability to send RPCs to automountd to change 
    mount options of a file system.
     
4.  List of Patches

    The vulnerability in automounter is fixed by the following patches:

    OS version          Patch ID
    __________		________
    SunOS 5.5.1		104654-03	
    SunOS 5.5.1_x86	104655-01	
    SunOS 5.5		103187-29	
    SunOS 5.5_x86	103188-25	
    SunOS 5.4		101945-50	
    SunOS 5.4_x86	101946-44	
    SunOS 5.3		101318-87		

5.  Checksum Table

    The checksum table below shows the BSD checksums (SunOS 5.x: /usr/ucb/sum),
    SVR4 checksums (SunOS 5.x: /usr/bin/sum), and the MD5 digital signatures 
    for the above-mentioned patches that are available from:
     
     	<URL:ftp://sunsolve1.sun.com/pub/patches/patches.html>
     	
    These checksums may not apply if you obtain patches from your answer
    centers. 

File Name	  BSD	      SVR4	   MD5
_______________   _________   __________   ________________________________
104654-03.tar.Z   24600 156   2056 312     B3EE8F82F04E5417ADA98FCB05E502AF
104655-01.tar.Z   44811 134   58967 267    95C4806913F7BB7184E2CE27B8FF407E
103187-29.tar.Z   47938 3240  14585 6479   D681C0BB1C4267418AEB20F56DDE7FD3
103188-25.tar.Z   07195 2880  23176 5760   6707EAB1BD10B845F535E131836F8DC5
101945-50.tar.Z   04413 10909 4073 21817   198EAAAC3D92898622351C43F87E884F
101946-44.tar.Z   10072 5540  36413 11080  92D61AD71C77F56CA1DF6038D644B4F9
101318-87.tar.Z   45783 11292 55998 22584  395AD525FD411904A3BD03E7E02EED10
_______________________________________________________________________________
APPENDICES

A.  Patches listed in this bulletin are available to all Sun customers via 
    World Wide Web at:
    
    	<URL:ftp://sunsolve1.sun.com/pub/patches/patches.html>
    	
    Customers with Sun support contracts can also obtain patches from local 
    Sun answer centers and SunSITEs worldwide.

B.  Sun security bulletins are available via World Wide Web at:

	<URL:http://sunsolve1.sun.com/sunsolve/secbulletins>
	
C.  Sun Security Coordination Team's PGP key is available via World Wide Web 
    at:

	<URL:http://sunsolve1.sun.com/sunsolve/secbulletins/SunSCkey.txt>
		    
D.  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

E.  To receive information or subscribe to our CWS (Customer Warning System) 
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