Debian: New feta packages fix denial of service
Posted by Benjamin D. Thomas   
Debian Dmitry E. Oboukhov discovered that the "to-upgrade" plugin of Feta, a simpler interface to APT, dpkg, and other Debian package tools creates temporary files insecurely, which may lead to local denial of service through symlink attacks.
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Debian Security Advisory DSA-1643-1                  security@debian.org
http://www.debian.org/security/                       Moritz Muehlenhoff
October 05, 2008                      http://www.debian.org/security/faq
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Package        : feta
Vulnerability  : insecure temp file handling
Problem type   : local
Debian-specific: no
CVE Id(s)      : CVE-2008-4440
Debian Bug     : 496397

Dmitry E. Oboukhov discovered that the "to-upgrade" plugin of Feta,
a simpler interface to APT, dpkg, and other Debian package tools
creates temporary files insecurely, which may lead to local denial
of service through symlink attacks.

For the stable distribution (etch), this problem has been fixed in
version 1.4.15+etch1.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.16+nmu1.

We recommend that you upgrade your feta package.

Upgrade instructions
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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 4.0 alias etch
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Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/f/feta/feta_1.4.15+etch1.dsc
    Size/MD5 checksum:      545 87c8cdfc722b149eefc2c4cc1e05c868
  http://security.debian.org/pool/updates/main/f/feta/feta_1.4.15+etch1.tar.gz
    Size/MD5 checksum:    52134 27b5bc566e7f42a5b79dd8ef67013b8d

Architecture independent packages:

  http://security.debian.org/pool/updates/main/f/feta/feta_1.4.15+etch1_all.deb
    Size/MD5 checksum:    47708 8133fddc8dc30973c5fcb3368292b1fb

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

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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