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TUCoPS :: Linux :: Debian :: dsa-1411.txt

mpack buffer overflow - Debian Security Advisory DSA 141-1




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Debian Security Advisory DSA 141-1 security@debian.org 
http://www.debian.org/security/ Martin Schulze 
August 1st, 2002 
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Package : mpack 
Vulnerability : buffer overflow 
Problem-Type : remote 
Debian-specific: no 


Eckehard Berns discovered a buffer overflow in the munpack program 
which is used for decoding (respectively) binary files in MIME 
(Multipurpose Internet Mail Extensions) format mail messages. If 
munpack is run on an appropriately malformed email (or news article) 
then it will crash, and perhaps can be made to run arbitrary code. 


Herbert Xu reported a second vulnerability which affected malformed 
filenames that refer to files in upper directories like "../a". The 
security impact is limited, though, because only a single leading 
"../" was accepted and only new files can be created (i.e. no files 
will be overwritten). 


Both problems were been fixed in version 1.5-5potato2 for the old 
stable distribution (potato), in version 1.5-7woody2 for the current 
stable distribution (woody) and in version 1.5-9 for the unstable 
distribution (sid). 


We recommend that you upgrade your mpack package 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 2.2 alias potato 
- ------------------------------------ 


  Source archives: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2.dsc 
      Size/MD5 checksum: 527 96670945b237c260638c859e38e8aaaa 
    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2.diff.gz 
      Size/MD5 checksum: 3200 60abfda1db9175fdee0efe10d8bebf9b 
    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5.orig.tar.gz 
      Size/MD5 checksum: 154859 c1914b27d02f830c3872973c342d5d9e 


  Alpha architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_alpha.deb 
      Size/MD5 checksum: 50602 7ecd69d7a2e0ae49aa0aae3803ea75eb 


  ARM architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_arm.deb 
      Size/MD5 checksum: 40266 c1d2a70472b84fd0b0f5f8c135c42d27 


  Intel IA-32 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_i386.deb 
      Size/MD5 checksum: 34576 77de4d66ac154790edcae66113b7a639 


  Motorola 680x0 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_m68k.deb 
      Size/MD5 checksum: 33228 ce7175e3ce4122eeac14d7477c51cd84 


  PowerPC architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_powerpc.deb 
      Size/MD5 checksum: 40502 d33adcda017f7b757554ee025dc362b8 


  Sun Sparc architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-5potato2_sparc.deb 
      Size/MD5 checksum: 45078 3b7858416e6a1e90b80b9d459d51d6e5 



Debian GNU/Linux 3.0 alias woody 
- ------------------------------------ 


  Source archives: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2.dsc 
      Size/MD5 checksum: 523 4204582ee8d21fe861b7f1dc8cd92546 
    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2.diff.gz 
      Size/MD5 checksum: 3915 d67bd3a65f5f020f791c17cdee3ad55f 
    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5.orig.tar.gz 
      Size/MD5 checksum: 154859 c1914b27d02f830c3872973c342d5d9e 


  Alpha architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_alpha.deb 
      Size/MD5 checksum: 49442 c991dd1e3c4623b1ac9bb46dd9025551 


  ARM architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_arm.deb 
      Size/MD5 checksum: 40526 83fd03952908fa7f399243940f20e4d1 


  Intel IA-32 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_i386.deb 
      Size/MD5 checksum: 35090 7765259cd9b990caa39452fc67050187 


  Intel IA-64 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_ia64.deb 
      Size/MD5 checksum: 59156 7cb1c76fe9f1f7d87e0981878edf2d2e 


  HP Precision architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_hppa.deb 
      Size/MD5 checksum: 45454 3a49ec1a19a527346c129aa2c1797df8 


  Motorola 680x0 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_m68k.deb 
      Size/MD5 checksum: 33912 4398d8c029716ca766dff016c8753185 


  Big endian MIPS architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_mips.deb 
      Size/MD5 checksum: 44182 7a6a0f8654618ff1f960e6c367357c9f 


  Little endian MIPS architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_mipsel.deb 
      Size/MD5 checksum: 44258 3a12139d051497e5ad4177e704801c72 


  PowerPC architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_powerpc.deb 
      Size/MD5 checksum: 40842 f1274abbe5fb400734c856093e069d85 


  IBM S/390 architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_s390.deb 
      Size/MD5 checksum: 39906 2207f7237298a17e6f62074261c61def 


  Sun Sparc architecture: 


    http://security.debian.org/pool/updates/main/m/mpack/mpack_1.5-7woody2_sparc.deb 
      Size/MD5 checksum: 46366 165ad9ca7a4cf9590c3d6ed3872d1b64 



  These files will probably be moved into the stable distribution on 
  its next revision. 


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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: debian-security-announce@lists.debian.org 
Package info: `apt-cache show <pkg>' and http://packages.debian.org/> 


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