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Patch 2090 : xlock security fix : [IRIX 6.3 6.2 5.3]
INDEX

  • Relations
  • Release Notes
  • Inst Subsystem Requirements
  • Inst Subsystem Checksums
  • Inst Subsystem File Listings
  • Download Patch


    RELATIONS

    This patch does not replace any other patches.

    This patch has no known incompatiblities with other patches.

    This patch fixes the following bugs:
    484517 - xlock has buffer overflow security issue


    RELEASE NOTES

    1. Patch SG0002090 Release Note

           This release note describes patch SG0002090 to IRIX 5.3,
           6.2, and 6.3.
    
    
    1.1 Supported Hardware Platforms
           This patch contains bug fixes for all platforms.
    
    
    1.2 Supported Software Platforms
           This patch contains bug fixes for the X11 Execution
           Environment for IRIX 5.3 and IRIX 5.3 with XFS (version
           1021572033), IRIX 5.3 for IMPACT (version 1022585736), IRIX
           6.2 (version 1232792130), IRIX 6.2 with Indigo2 IMPACT 10000
           (version 1233007720), and IRIX 6.3 including O2 R10000
           (version 1253422531).  The software cannot be installed on
           other configurations.
    
    
    1.3 Bugs Fixed by Patch SG0002090
           This patch contains fixes for the following bugs in IRIX
           5.3, 6.2, and 6.3.  Bug numbers from Silicon Graphics bug
           tracking system are included for reference.
    
              o Internal buffers in xlock can be overflowed by user-
                modifiable values, allowing arbitrary data to be placed
                on the stack.  Since xlock is setuid root, this might
                allow an unprivileged user to gain root access.  (Bug
                #484517)
    
    
    1.4 Subsystems Included in Patch SG0002090
           This patch release includes these subsystems:
    
              o patchSG0002090.x_eoe_sw.eoe
    
    
    1.5 Installation Instructions
           Because you want to install only the patches for problems
           you have encountered, patch software is not installed by
           default.  After reading the descriptions of the bugs fixed
           in this patch (see Section 1.3), determine the patches that
           meet your specific needs.
    
           If, after reading Sections 1.1 and 1.2 of these release
           notes, you are unsure whether your hardware and software
           meet the requirements for installing a particular patch, run
           inst.  The inst program does not allow you to install
    
    
           patches that are incompatible with your hardware or
           software.
    
           Patch software is installed like any other Silicon Graphics
           software product.  Follow the instructions in your Software
           Installation Administrator's Guide to bring up the miniroot
           form of the software installation tools.
    
           Follow these steps to select a patch for installation:
    
             1.  At the Inst> prompt, type
    
                 install patchSGxxxxxxx
    
                 where xxxxxxx is the patch number.
    
             2.  Initiate the installation sequence. Type
    
                 Inst> go
    
             3.  You may find that two patches have been marked as
                 incompatible.  (The installation tools reject an
                 installation request if an incompatibility is
                 detected.)  If this occurs, you must deselect one of
                 the patches.
    
                 Inst> keep patchSGxxxxxxx
    
                 where xxxxxxx is the patch number.
    
             4.  After completing the installation process, exit the
                 inst program by typing
    
                 Inst> quit
    
    
    1.6 Patch Removal Instructions
           To remove a patch, use the versions remove command as you
           would for any other software subsystem.  The removal process
           reinstates the original version of software unless you have
           specifically removed the patch history from your system.
    
           versions remove patchSGxxxxxxx
    
           where xxxxxxx is the patch number.
    
           To keep a patch but increase your disk space, use the
           versions removehist command to remove the patch history.
    
    
           versions removehist patchSGxxxxxxx
    
           where xxxxxxx is the patch number.
    
    
    1.7 Known Problems
    
    
    INST SUBSYSTEM REQUIREMENTS
    No Requirements Information Available.
    

    INST SUBSYSTEM CHECKSUMS

    These checksums help to provide a 'signature' for the patch inst image which can be used to authenticate other inst images. You can obtain this kind of output by running sum -r on the image (from the command line):

    49562      1   patchSG0002090
    47573      1   patchSG0002090.idb
    40887    114   patchSG0002090.x_eoe_sw
    

    INST SUBSYSTEM FILE LISTINGS

    The following lists the files which get installed from each subsystem in the patch:

    patchSG0002090.x_eoe_sw.eoe
    usr/bin/X11/xlock
    usr/relnotes/patchSG0002090/TC
    usr/relnotes/patchSG0002090/ch1.z


    DOWNLOAD PATCH
    Download Server File Name Date Added Size Download
    download.sgi.com patchSG0002090.tar 22-May-1997 70 K FTP HTTP Add to download cart 
    download.sgi.com patchSG0002090.tardist 22-May-1997 70 K FTP HTTP
     
    FTP = download using FTP protocol
    HTTP = download using HTTP protocol
    Add to shopping list= store in your basket for downloading later
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    Document Id: 20021117065321-IRIXPatch-1072