SuSE Security Announcement - lynx

From: Marc Heuse (marcat_private)
Date: Thu Sep 16 1999 - 12:38:02 PDT

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    ______________________________________________________________________________
    
                            SuSE Security Announcement
    
            Package:  lynx-2.8.2 and older
            Date:     Thu Sep 16 21:29:15 CEST 1999
            Affected: all Linux distributions using lynx-2.8.2 and older
    ______________________________________________________________________________
    
    A security hole was discovered in the package mentioned above.
    Please update as soon as possible or disable the service if you are using
    this software on your SuSE Linux installation(s).
    
    Other Linux distributions or operating systems might be affected as
    well, please contact your vendor for information about this issue.
    
    Please note, that that we provide this information on as "as-is" basis only.
    There is no warranty whatsoever and no liability for any direct, indirect or
    incidental damage arising from this information or the installation of
    the update package.
    _____________________________________________________________________________
    
    1. Problem Description
    
      When lynx calls external programs for protocols (e.g. telnet), the
      location is passed unchecked. This can be used to activate commandline
      parameters.
      For example, this reference  [A HREF="telnet://-n.rhosts"]click me[/A]
      would activate the tracefile options on the telnet client, with the
      result, that a .rhosts in the current directory would created or
      overwritten.
    
    2. Impact
    
      Depending on the external programs called by lynx, files can be created
      or truncated, or even remote commands being executed if e.g. ssh or rsh
      would be configured in lynx.
    
    3. Solution
    
      Updated the lynx package from our FTP server.
    ______________________________________________________________________________
    
    Here are the md5 checksums of the upgrade packages, please verify these
    before installing the new packages:
    
    lynx-2.8.3dev9-76.i386.rpm   fd29230757f76d33e21836965822f7a6  (5.3)
    lynx-2.8.3dev9-76.i386.rpm   2fba1f9fcf2c3ad9bbb23f0ea18acecd  (6.0)
    lynx-2.8.3dev9-76.alpha.rpm  f706fa71b38721d1d0e1e69700c467a4  (AXP)
    lynx-2.8.3dev9-76.i386.rpm   2fba1f9fcf2c3ad9bbb23f0ea18acecd  (6.1)
    lynx-2.8.3dev9-76.i386.rpm   18f870d15016f63aa510cc5161c027c2  (6.2)
    ______________________________________________________________________________
    
    You will find the update on our ftp-Server:
      ftp://ftp.suse.com/pub/suse/i386/update/5.3/n1/lynx-2.8.3dev9-76.i386.rpm
      ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/lynx-2.8.3dev9-76.alpha.rpm
      ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/lynx-2.8.3dev9-76.i386.rpm
      ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/lynx-2.8.3dev9-76.i386.rpm
    
    Webpage for patches:
      http://www.suse.de/patches/index.html
    
    or try the following web pages for a list of mirrors:
      http://www.suse.de/ftp.html
      http://www.suse.com/ftp_new.html
    
    ______________________________________________________________________________
    
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    ______________________________________________________________________________
    
    If you want to report *NEW* security bugs in the SuSE Linux Distribution
    please send an email to securityat_private or call our support line.
    You may use pgp with the public key below to ensure confidentiality.
    ______________________________________________________________________________
    
      This information is provided freely to everyone interested and may
      be redistributed provided that it is not altered in any way.
    
    Type Bits/KeyID    Date       User ID
    pub  2048/3D25D3D9 1999/03/06 SuSE Security Team <securityat_private>
    
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