Debian: UPDATE: Dietlibc Integer overflow

    Date08 Aug 2002
    CategoryDebian
    2192
    Posted ByLinuxSecurity Advisories
    The upstream author of dietlibc, Felix von Leitner, discovered a potential division by zero chance in the fwrite and calloc integer overflow checks.
    
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 146-2                     This email address is being protected from spambots. You need JavaScript enabled to view it. 
    http://www.debian.org/security/                             Martin Schulze
    August 8th, 2002   
    - --------------------------------------------------------------------------
    
    Package        : dietlibc
    Vulnerability  : integer overflow
    Problem-Type   : remote
    Debian-specific: no
    CVE Id         : CAN-2002-0391
    CERT advisory  : VU#192995
    
    The upstream author of dietlibc, Felix von Leitner, discovered a
    potential division by zero chance in the fwrite and calloc integer
    overflow checks, which are fixed in the version below.
    
    The new version includes fixes from DSA 146-1.  For completness we
    enclose the text of the other advisory:
    
        An integer overflow bug has been discovered in the RPC library
        used by dietlibc, a libc optimized for small size, which is
        derived from the SunRPC library.  This bug could be exploited to
        gain unauthorized root access to software linking to this code.
        The packages below also fix integer overflows in the calloc, fread
        and fwrite code.  They are also more strict regarding hostile DNS
        packets that could lead to a vulnerability otherwise.
    
    This problem has been fixed in version 0.12-2.4 for the current stable
    distribution (woody) and in version 0.20-0cvs20020808 for the unstable
    distribution (sid).  Debian 2.2 (potato) is not affected since it
    doesn't contain dietlibc packages.
    
    We recommend that you upgrade your dietlibc packages immediately.
    
    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 3.0 alias woody
    - --------------------------------
    
    The dietlibc packages are only available for the following
    architectures: alpha arm i386 mips mipsel powerpc sparc
    
      Source archives:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12-2.4.dsc
          Size/MD5 checksum:      581 5b35d65f52bad60c25ed4fc38171a13a
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12-2.4.diff.gz
          Size/MD5 checksum:     7943 dc4943d8ad22321ce57a2c8109e16eee
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc_0.12.orig.tar.gz
          Size/MD5 checksum:   415823 1b9019cc4e717470603d2716a602ec51
    
      Architecture independent components:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-doc_0.12-2.4_all.deb
          Size/MD5 checksum:    18956 8677ee59b39720edb9860bed12926ac7
    
      Alpha architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_alpha.deb
          Size/MD5 checksum:   264232 be91b0b9c13396a26c29b44d8aee4cc7
    
      ARM architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_arm.deb
          Size/MD5 checksum:   239160 3e1b0b54441a9d05d4b4f18f7bed5daf
    
      Intel IA-32 architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_i386.deb
          Size/MD5 checksum:   230704 705f8d03822326256e8e11e4b49b4398
    
      Big endian MIPS architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_mips.deb
          Size/MD5 checksum:   252890 d962f7770928ba2acef49da1bd085850
    
      Little endian MIPS architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_mipsel.deb
          Size/MD5 checksum:   251724 d85e74c9bbf7355d68d776fdc3cecf9e
    
      PowerPC architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_powerpc.deb
          Size/MD5 checksum:   246014 969782849549a59b0cc746bdb1482b5f
    
      Sun Sparc architecture:
    
         http://security.debian.org/pool/updates/main/d/dietlibc/dietlibc-dev_0.12-2.4_sparc.deb
          Size/MD5 checksum:   239082 5d2e235422c3fa8a8b8621997ae685e3
    
    
      These files will probably be moved into the stable distribution on
      its next revision.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb  http://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  http://packages.debian.org/
    
    
    
    
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