[ SOURCE: http://www.secureroot.com/security/advisories/9771794412.html ]

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Debian Security Advisory DSA-004-1                   security@debian.org

http://www.debian.org/security/                         Wichert Akkerman

December 17, 2000

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Package        : nano

Problem type   : symlink attack

Debian-specific: no



The problem that was previously reported for joe also occurs with

other editors. When nano (a free pico clone) unexpectedly dies

it tries a warning message to a new file with a predictable name

(the name of the file being edited with ".save" appended). Unfortunately

that file was not created safely which made nano vulnerable to a

symlink attack.



This has been fixed in version 0.9.23-1 (except for powerpc, which has

version 0.9.23-1.1).



wget url

        will fetch the file for you

dpkg -i file.deb

        will install the referenced file.





Debian GNU/Linux 2.2 alias potato

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



  Source archives:

    http://security.debian.org/dists/stable/updates/main/source/nano_0.9.23-1.diff.gz

      MD5 checksum: 5c878e43e5161ee25043f60886c88b03

    http://security.debian.org/dists/stable/updates/main/source/nano_0.9.23-1.dsc

      MD5 checksum: 85879b609fbcd5b091e686d16e75865b

    http://security.debian.org/dists/stable/updates/main/source/nano_0.9.23.orig.tar.gz

      MD5 checksum: 56bdf48e0d56b83ca669ec813cc0d466



  Alpha architecture:

    http://security.debian.org/dists/stable/updates/main/binary-alpha/nano-tiny_0.9.23-1_alpha.deb

      MD5 checksum: f7bba57357225edc934d5adb1ef2259e

    http://security.debian.org/dists/stable/updates/main/binary-alpha/nano_0.9.23-1_alpha.deb

      MD5 checksum: c6a99a014225016f86f367a4ec0edf8b



  ARM architecture:

    http://security.debian.org/dists/stable/updates/main/binary-arm/nano-tiny_0.9.23-1_arm.deb

      MD5 checksum: 4a3e6f9140e874bc502149b610007307

    http://security.debian.org/dists/stable/updates/main/binary-arm/nano_0.9.23-1_arm.deb

      MD5 checksum: 111c0a9180e07868cb471c47cace287e



  Intel ia32 architecture:

    http://security.debian.org/dists/stable/updates/main/binary-i386/nano-tiny_0.9.23-1_i386.deb

      MD5 checksum: fd018ffdb6bf1932b96473969bcf9ef9

    http://security.debian.org/dists/stable/updates/main/binary-i386/nano_0.9.23-1_i386.deb

      MD5 checksum: ce7487c7aa0ce8ed1b791f51b5ece31c



  Motorola 680x0 architecture:

    http://security.debian.org/dists/stable/updates/main/binary-m68k/nano-tiny_0.9.23-1_m68k.deb

      MD5 checksum: 49261ca3f044d318dda67069527d4260

    http://security.debian.org/dists/stable/updates/main/binary-m68k/nano_0.9.23-1_m68k.deb

      MD5 checksum: 0a0ac605a31e49674ceb0d3b5d3aa0a8



  PowerPC architecture:

    http://security.debian.org/dists/stable/updates/main/binary-powerpc/nano-tiny_0.9.23-1.1_powerpc.deb

      MD5 checksum: c6d4ec4efd2853f4acd35a4ec5e951c8

    http://security.debian.org/dists/stable/updates/main/binary-powerpc/nano_0.9.23-1.1_powerpc.deb

      MD5 checksum: 69df7777cedcc4aba0134a4838614aca



  Sun Sparc architecture:

    http://security.debian.org/dists/stable/updates/main/binary-sparc/nano-tiny_0.9.23-1_sparc.deb

      MD5 checksum: 912ba97af630e91e2878190d373ab375

    http://security.debian.org/dists/stable/updates/main/binary-sparc/nano_0.9.23-1_sparc.deb

      MD5 checksum: 6098621e245ed89c4b09772601c957e0



  These files will be moved into

  ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.



For not yet released architectures please refer to the appropriate

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



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

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

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



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