Linux Security
Linux Security
Linux Security

Debian: New pptpd packages fix denial of service

Date 08 May 2007
3561
Posted By LinuxSecurity Advisories
It was discovered that the PoPToP Point to Point Tunneling Server contains a programming error, which allows the tear-down of a PPTP connection through a malformed GRE packet, resulting in denial of service.
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Debian Security Advisory DSA 1288-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                         Moritz Muehlenhoff
May 8th, 2007                           https://www.debian.org/security/faq
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Package        : pptpd 
Vulnerability  : programming error
Problem-Type   : remote
Debian-specific: no
CVE ID         : CVE-2007-0244

It was discovered that the PoPToP Point to Point Tunneling Server
contains a programming error, which allows the tear-down of a PPTP
connection through a malformed GRE packet, resulting in denial of
service.

The oldstable distribution (sarge) is not affected by this problem.

For the stable distribution (etch) this problem has been fixed in
version 1.3.0-2etch1.

For the unstable distribution (sid) this problem has been fixed in
version 1.3.4-1.

We recommend that you upgrade your pptpd 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
- -------------------------------

  Source archives:

    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1.dsc
      Size/MD5 checksum:      599 0363621f77d0364e4f58bd834d33b4ad
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1.diff.gz
      Size/MD5 checksum:    11297 419d853dca942c8a0067f498105cb23e
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0.orig.tar.gz
      Size/MD5 checksum:   204099 75d494e881f7027f4e60b114163f6b67

  Alpha architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_alpha.deb
      Size/MD5 checksum:    21554 5da1231c95624aebe45151934ada6d8e
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_alpha.deb
      Size/MD5 checksum:    64740 d6521d5ac703126cc34159150a0e2d52

  AMD64 architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_amd64.deb
      Size/MD5 checksum:    20428 70a4c0df307f0945aa314f86df7f2702
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_amd64.deb
      Size/MD5 checksum:    59290 6bc5e608d384ffbd41405a92e97f647a

  ARM architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_arm.deb
      Size/MD5 checksum:    20176 d6ce1ef85e3fafdc8cb32d04d6ae98c8
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_arm.deb
      Size/MD5 checksum:    58408 96844eb323113add2816a8f2e8ca1142

  HP Precision architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_hppa.deb
      Size/MD5 checksum:    21004 912a261ede698514104c8fbc93b1b6bf
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_hppa.deb
      Size/MD5 checksum:    59894 5c4ca1daa388f43cc7b3972fc76da82a

  Intel IA-32 architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_i386.deb
      Size/MD5 checksum:    20166 c085606c87a9905a2c72e6dcd7305525
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_i386.deb
      Size/MD5 checksum:    57490 942bd5e1e6e928a841f4d95fd7bf71ee

  Intel IA-64 architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_ia64.deb
      Size/MD5 checksum:    23648 ed22bf531fe2b9711208df4e4e3389c6
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_ia64.deb
      Size/MD5 checksum:    74040 c2d7c1c250b89d9403a7c0199f5fae34

  Big endian MIPS architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_mips.deb
      Size/MD5 checksum:    20720 798efba0ced288d3833e2e7b18965ca1
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_mips.deb
      Size/MD5 checksum:    59772 7d974663a724e5a3ff9f777ceb6ff839

  Little endian MIPS architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_mipsel.deb
      Size/MD5 checksum:    20858 cd09139e896c5c11e160b6c10833a786
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_mipsel.deb
      Size/MD5 checksum:    60398 6a36307f4c7b3e13f85969ffb54e0e65

  PowerPC architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_powerpc.deb
      Size/MD5 checksum:    20540 1dca71d4ff863840bfea87c61456f084
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_powerpc.deb
      Size/MD5 checksum:    61312 1f19e449701c0f8dae0ea3463893b593

  IBM S/390 architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_s390.deb
      Size/MD5 checksum:    20490 8c50aa09194d05221750645eccfad15a
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_s390.deb
      Size/MD5 checksum:    58254 2c1c0e98d8e7ad0ab85fe0e5374d8dec

  Sun Sparc architecture:

    https://security.debian.org/pool/updates/main/p/pptpd/bcrelay_1.3.0-2etch1_sparc.deb
      Size/MD5 checksum:    20146 7c4b0159f15c3dd61bc0c3e067a019b1
    https://security.debian.org/pool/updates/main/p/pptpd/pptpd_1.3.0-2etch1_sparc.deb
      Size/MD5 checksum:    56976 657c5b4daf375eab89e13259c52e41b7


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

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For apt-get: deb https://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
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