Security Bulletin #00202 (i386 syscalls)

2001-05-16T00:00:00
ID SECURITYVULNS:DOC:1621
Type securityvulns
Reporter Securityvulns
Modified 2001-05-16T00:00:00

Description


               Sun Microsystems, Inc. Security Bulletin

Bulletin Number: #00202 Date: May 15, 2001 Cross-Ref:
Title: i386 syscalls


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  1. Bulletins Topics

    This issue is only present on the Intel Platform Edition of Solaris.

    Sun announces the release of patches for Intel Platform Editions of Solaris(tm) 8, 7, and 2.6 (SunOS(tm) 5.8_x86, 5.7_x86, and 5.6_x86) which relate to a vulnerability in user-supplied arguments to a syscall on i386 platforms.

    Sun recommends that you install the patches listed in section 4 immediately on systems running SunOS 5.8_x86, 5.7_x86, and 5.6_x86. or Trusted Solaris 8_x86 and 7_x86.

  2. Who is Affected

    Vulnerable:             Intel Platform Edition of Solaris 8, 7,
                            and 2.6 (SunOS 5.8_x86, 5.7_x86, and 5.6_x86).
    
                            Intel Platform Edition of Trusted Solaris 8
                            and 7.
    
    Not vulnerable:         All SPARC Platform Editions of Solaris and 
                            Intel Platform Editions of Solaris prior
                            to 2.6.
    
  3. Understanding the Vulnerability

    The Intel i386 architecture supports a protection and segmentation model which allows different levels of privilege. Carefully constructed arguments could allow access to higher privilege than intended which could be used to control arbitrary addresses in kernel memory.

  4. List of Patches

    The following patches are available in relation to the above problems.

    OS Version Patch ID
    _ _
    SunOS 5.8
    x86 108529-07
    SunOS 5.7_x86 106542-16
    SunOS 5.6_x86 105182-27 (Scheduled availability June 18, 2001)

    Trusted Solaris


    TS8_x86 110338-02 (available soon) TS7_x86 109597-05 (available soon)


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

D. Sun Security Coordination Team's PGP key is available at:

http://sunsolve.sun.com/pgpkey.txt

E. To report or inquire about a security problem with Sun software, contact one or more of the following:

    - Your local Sun answer centers
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            security-alert@sun.com

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Copyright 2001 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 Security Bulletin is not modified in any way and is attributed to Sun Microsystems, Inc. and provided that such reproduction and distribution is performed for non-commercial purposes.