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                                    CERT-Renater

                         Note d'Information No. 2006/VULN082
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DATE                      : 02/03/2006

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Solaris 10 running PERL.

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Sun(sm) Alert Notification
      * Sun Alert ID: 102192
      * Synopsis: Integer Overflow Vulnerability in Perl May Lead to
        Application Crash or Code Execution
      * Category: Security
      * Product: Solaris 10 Operating System
      * BugIDs: 6368763
      * Avoidance: Patch
      * State: Resolved
      * Date Released: 28-Feb-2006
      * Date Closed: 28-Feb-2006
      * Date Modified:

1. Impact

    An unprivileged local user may be able to cause a Perl application to
    crash or possibly execute arbitrary code with the privileges of the
    Perl application due to an integer overflow in the Perl_sv_vcatpvfn()
    function.

    Being able to crash a Perl application is a type of Denial of Service
    (DoS). If the Perl application accepts input from remote users then
    the impact can be extended to include remote unprivileged users.

    This issue is referenced in the following document:

    CVE-2005-3962 at:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3962

2. Contributing Factors

    This issue can occur in the following releases:

    SPARC Platform
      * Solaris 10 without patch 119985-02

    x86 Platform
      * Solaris 10 without patch 122082-01

    Note: Solaris 8 and Solaris 9 are not affected by this issue.

    This issue only affects Perl versions 5.8.0 and later. Solaris 10
    ships with Perl 5.6.1 in "/usr/perl5/5.6.1/" and Perl 5.8.4 in
    "/usr/perl5/5.8.4/". The patches for this issue only apply to Perl
    5.8.4.

3. Symptoms

    There are no reliable symptoms that would indicate the described issue
    has been exploited to execute arbitrary commands with the privileges
    of the affected Perl application on a host. The symptoms of the Denial
    of Service would be the Perl application no longer running.

4. Relief/Workaround

    There is no workaround. Please see the "Resolution" section below.

5. Resolution

    This issue is addressed in the following releases:

    SPARC Platform
      * Solaris 10 with patch 119985-02 or later

    x86 Platform
      * Solaris 10 with patch 122082-01 or later

    This Sun Alert notification is being provided to you on an "AS IS"
    basis. This Sun Alert notification may contain information provided by
    third parties. The issues described in this Sun Alert notification may
    or may not impact your system(s). Sun makes no representations,
    warranties, or guarantees as to the information contained herein. ANY
    AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
    WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
    NON-INFRINGEMENT, ARE HEREBY DISCLAIMED. BY ACCESSING THIS DOCUMENT
    YOU ACKNOWLEDGE THAT SUN SHALL IN NO EVENT BE LIABLE FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES THAT ARISE
    OUT OF YOUR USE OR FAILURE TO USE THE INFORMATION CONTAINED HEREIN.
    This Sun Alert notification contains Sun proprietary and confidential
    information. It is being provided to you pursuant to the provisions of
    your agreement to purchase services from Sun, or, if you do not have
    such an agreement, the Sun.com Terms of Use. This Sun Alert
    notification may only be used for the purposes contemplated by these
    agreements.

    Copyright 2000-2006 Sun Microsystems, Inc., 4150 Network Circle, Santa
    Clara, CA 95054 U.S.A. All rights reserved

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