Linux Security
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    Linux Security

    Debian: UPDATE: im tmp file vulnerability

    Date
    2797
    Posted By
    Tatsuya Kinoshita discovered that IM, which contains interface commands and Perl libraries for E-mail and NetNews, creates temporary files insecurely.
    
    --------------------------------------------------------------------------
    Debian Security Advisory DSA 202-2                     This email address is being protected from spambots. You need JavaScript enabled to view it. 
    https://www.debian.org/security/                             Martin Schulze
    December 6th, 2002                       https://www.debian.org/security/faq
    --------------------------------------------------------------------------
    
    Package        : im
    Vulnerability  : temporary files
    Problem-Type   : local
    Debian-specific: no
    
    Despite popular belief, the IM packages are not architecture
    independent, since the number of the fsync syscal is detected on
    build time and this number differs on Linux architectures and
    other operating systems.  As a result of this the optional feature
    ``NoSync=no'' does only work on the architecture the package was
    built on.  As usual, we are including the text of the original
    advisory DSA 202-1:
    
       Tatsuya Kinoshita discovered that IM, which contains interface
       commands and Perl libraries for E-mail and NetNews, creates
       temporary files insecurely.
    
        1. The impwagent program creates a temporary directory in an
           insecure manner in /tmp using predictable directory names
           without checking the return code of mkdir, so it's possible to
           seize a permission of the temporary directory by local access
           as another user.
    
        2. The immknmz program creates a temporary file in an insecure
           manner in /tmp using a predictable filename, so an attacker
           with local access can easily create and overwrite files as
           another user.
    
    This problem has been fixed in version 141-18.2 for the current
    stable distribution (woody), in version 133-2.3 of the old stable
    distribution (potato).  A correection is expected for the unstable
    distribution (sid) soon.
    
    We recommend that you upgrade your IM package.
    
    wget url
            will fetch the file for you
    dpkg -i file.deb
            will install the referenced file.
    
    If you are using the apt-get package manager, use the line for
    sources.list as given below:
    
    apt-get update
            will update the internal database
    apt-get upgrade
            will install corrected packages
    
    You may use an automated update by adding the resources from the
    footer to the proper configuration.
    
    
    Debian GNU/Linux 2.2 alias potato
    ---------------------------------
    
      Source archives:
    
         https://security.debian.org/pool/updates/main/i/im/im_133-2.3.dsc
          Size/MD5 checksum:      513 65dd0bbcb7d00d664368fcf9738ba615
         https://security.debian.org/pool/updates/main/i/im/im_133-2.3.diff.gz
          Size/MD5 checksum:     7521 954b2f8f55ae7f62683c240322348609
         https://security.debian.org/pool/updates/main/i/im/im_133.orig.tar.gz
          Size/MD5 checksum:   205055 df14f9a251a8d47fc045b6303090be47
    
      Architecture independent components:
    
         https://security.debian.org/pool/updates/main/i/im/im_133-2.3_all.deb
          Size/MD5 checksum:   218056 85f7e256fa243204c4797bed622da192
    
    
    Debian GNU/Linux 3.0 alias woody
    --------------------------------
    
      Source archives:
    
         https://security.debian.org/pool/updates/main/i/im/im_141-18.2.dsc
          Size/MD5 checksum:      568 27c54961223aac6c3ad0e9ac8bec2210
         https://security.debian.org/pool/updates/main/i/im/im_141-18.2.diff.gz
          Size/MD5 checksum:    14706 03fcab14b6ceab8d3f586ded82fd7fe7
         https://security.debian.org/pool/updates/main/i/im/im_141.orig.tar.gz
          Size/MD5 checksum:   207576 9ecd2d6009048f1fecbc7b2e0e8cd489
    
      Architecture independent components:
    
         https://security.debian.org/pool/updates/main/i/im/im_141-18.2_all.deb
          Size/MD5 checksum:   217680 af681b5b5d149adf134471b1dcb37ad7
    
    
      These files will probably be moved into the stable distribution on
      its next revision.
    
    ---------------------------------------------------------------------------------
    For apt-get: deb  https://security.debian.org/ stable/updates main
    For dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    Package info: `apt-cache show ' and  https://packages.debian.org/
    
    
    

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