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Debian Security Advisory DSA 052-1                       security@debian.org

http://www.debian.org/security/                               Martin Schulze

April 23, 2001

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Package        : sendfile

Vulnerability  : broken privileges dropping

Problem-Type   : local root exploit

Debian-specific: no



Daniel Kobras has discovered and fixed a problem in sendfiled which

caused the daemon not to drop privileges as expected when sendnig

notification mails.  Exploiting this a local user can easily make it

execute arbitrary code under root privileges.



We recommend that you upgrade your sendfile 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 2.2 alias potato

------------------------------------



  Potato was released for the alpha, arm, i386, m68k, powerpc and sparc

  architectures.





  Source archives:



    sendfile_2.1-20.3.diff.gz
      MD5 checksum: 91355d38eb584f73686fc277edb9d6aa

    sendfile_2.1-20.3.dsc
      MD5 checksum: c9fea4f8195620c2a05088953dbf3306

    sendfile_2.1.orig.tar.gz
      MD5 checksum: cff003126595d8e77143c42ef898dc10



  Alpha architecture:



    sendfile_2.1-20.3_alpha.deb
      MD5 checksum: 94f00bf4b61d0ef2b71014be3e09dc33



  ARM architecture:



    sendfile_2.1-20.3_arm.deb
      MD5 checksum: affd585c9ea55d9b466263161b295dbb



  Intel ia32 architecture:



    sendfile_2.1-20.3_i386.deb
      MD5 checksum: 0b8437721a0e93672fbecb672c1e3ad3



  Motorola 680x0 architecture:



    sendfile_2.1-20.3_m68k.deb
      MD5 checksum: fbb6585f80028d6af6dfdf2267f0b29a



  PowerPC architecture:



    sendfile_2.1-20.3_powerpc.deb
      MD5 checksum: 4f355d75c926837ae769c7322f9ec3e3



  Sun Sparc architecture:



    sendfile_2.1-20.3_sparc.deb
      MD5 checksum: 0f062e9333c54bfd92e6477e0f4a984e





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

  revision.



For not yet released architectures please refer to the appropriate

directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .



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For apt-get: deb http://security.debian.org/ stable/updates main

For dpkg-ftp: ftp://security.debian.org/debian-securitydists/stable/updates/main

Mailing list: debian-security-announce@lists.debian.org

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



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