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Debian Security Advisory DSA-1979-1                  security@debian.org
http://www.debian.org/security/                         Raphael Geissert
January 27, 2009                      http://www.debian.org/security/faq
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Package        : lintian
Vulnerability  : multiple
Problem type   : local
Debian-specific: no
CVE Id(s)      : CVE-2009-4013 CVE-2009-4014 CVE-2009-4015

Multiple vulnerabilities have been discovered in lintian,
a Debian package checker. The following Common Vulnerabilities and
Exposures project ids have been assigned to identify them:

CVE-2009-4013: missing control files sanitation

    Control field names and values were not sanitised before using them
    in certain operations that could lead to directory traversals.

    Patch systems' control files were not sanitised before using them
    in certain operations that could lead to directory traversals.

    An attacker could exploit these vulnerabilities to overwrite
    arbitrary files or disclose system information.

CVE-2009-4014: format string vulnerabilities

    Multiple check scripts and the Lintian::Schedule module were using
    user-provided input as part of the sprintf/printf format string.

CVE-2009-4015: arbitrary command execution

    File names were not properly escaped when passing them as arguments
    to certain commands, allowing the execution of other commands as
    pipes or as a set of shell commands.


For the oldstable distribution (etch), these problems have been fixed in
version 1.23.28+etch1.

For the stable distribution (lenny), these problems have been fixed in
version 1.24.2.1+lenny1.

For the testing distribution (squeeze), these problems will be fixed
soon.

For the unstable distribution (sid), these problems have been fixed in
version 2.3.2


We recommend that you upgrade your lintian packages.

Upgrade instructions
- --------------------

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 (oldstable)
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Source archives:

  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.23.28+etch1.tar.gz
    Size/MD5 checksum:   322293 127f82c30379e65c24a53044143d00cc
  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.23.28+etch1.dsc
    Size/MD5 checksum:      824 f99d118c811bdd611fb4ee81b53c2684

Architecture independent packages:

  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.23.28+etch1_all.deb
    Size/MD5 checksum:   275856 26cd4deb23c37aee3469c0eb2e86fd83


Debian GNU/Linux 5.0 alias lenny (stable)
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Source archives:

  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.24.2.1+lenny1.tar.gz
    Size/MD5 checksum:   470561 7df7c88fa5add0762f6c7873f6601fbe
  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.24.2.1+lenny1.dsc
    Size/MD5 checksum:     1160 b38dd3251e8354b62d7a4191a88211ed

Architecture independent packages:

  http://security.debian.org/pool/updates/main/l/lintian/lintian_1.24.2.1+lenny1_all.deb
    Size/MD5 checksum:   358170 2ca70ec0a83fb608eca83c0beac8bf81


  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