bugtraq - [SECURITY] [DSA 1106-1] New ppp packages fix privilege escalation

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Message-ID: <20060710062124.0BC20FDDF__53.1187783510134$1152555596$gmane$org@finlandia.home.infodrom.org>
Date: Mon, 10 Jul 2006 08:21:24 +0200 (CEST)
From: joey@...odrom.org (Martin Schulze)
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 1106-1] New ppp packages fix privilege escalation


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- --------------------------------------------------------------------------
Debian Security Advisory DSA 1106-1                    security@...ian.org
http://www.debian.org/security/                             Martin Schulze
July 10th, 2006                         http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : ppp
Vulnerability  : programming error
Problem type   : local
Debian-specific: no
CVE ID         : CVE-2006-2194

Marcus Meissner discovered that the winbind plugin in pppd does not
check whether a setuid() call has been successful when trying to drop
privileges, which may fail with some PAM configurations.

The old stable distribution (woody) is not affected by this problem.

For the stable distribution (sarge) this problem has been fixed in
version 2.4.3-20050321+2sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 2.4.4rel-1.

We recommend that you upgrade your ppp package.


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 at the end of this advisory:

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 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1.dsc
      Size/MD5 checksum:      633 1b8f1f8da7cf7b56c2c6e13e2072167d
    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1.diff.gz
      Size/MD5 checksum:    83359 1fd6996f800c3d323b159ca5ab587712
    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3.orig.tar.gz
      Size/MD5 checksum:   697459 0537b03fb51cbb847290abdbb765cb93

  Architecture independent components:

    http://security.debian.org/pool/updates/main/p/ppp/ppp-dev_2.4.3-20050321+2sarge1_all.deb
      Size/MD5 checksum:    32072 77bab82e596987e60908f19c27bceeb6

  Alpha architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_alpha.deb
      Size/MD5 checksum:   393308 5f90be499af49912e7074c26979037db

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_amd64.deb
      Size/MD5 checksum:   346172 ae546c9f5f4f0bc2fdebab8858c93731

  ARM architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_arm.deb
      Size/MD5 checksum:   326134 aab781148123790027eb4bf114cc8df9

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_i386.deb
      Size/MD5 checksum:   324274 759537119b8680ed4e27ae09a52a65aa

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_ia64.deb
      Size/MD5 checksum:   437432 8a0acb4779046622af9c27a6307fa305

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_hppa.deb
      Size/MD5 checksum:   357572 5c415d1e9a6e31fdb01b2eb7f8f1065f

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_m68k.deb
      Size/MD5 checksum:   305432 4e7f194f247899a3d20280eca53e41ba

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_mips.deb
      Size/MD5 checksum:   348852 aca3c70a1be8c013a48e6d939ebe036a

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_mipsel.deb
      Size/MD5 checksum:   351084 7cd743087a4155ff0d9e8085cbee7dbf

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_powerpc.deb
      Size/MD5 checksum:   351188 60f69689787965812f891df34371600a

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_s390.deb
      Size/MD5 checksum:   343302 65648a90f1ab9abb71121ceeb9bb98a5

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/p/ppp/ppp_2.4.3-20050321+2sarge1_sparc.deb
      Size/MD5 checksum:   329684 1df0e5a6621da5344bdb91a1fd4eef3e


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

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

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