Linux Security
Linux Security
Linux Security

Debian: New isakmpd packages fix replay protection bypass

Date 13 Sep 2006
2560
Posted By LinuxSecurity Advisories
A flaw has been found in isakmpd, OpenBSD's implementation of the Internet Key Exchange protocol, that caused Security Associations to be created with a replay window of 0 when isakmpd was acting as the responder during SA negotiation. This could allow an attacker to re-inject sniffed IPsec packets, which would not be checked against the replay counter.
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Debian Security Advisory DSA 1175-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                             Noah Meyerhans
September 13th, 2006                    https://www.debian.org/security/faq
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Package        : isakmpd
Vulnerability  : programming error
Problem-Type   : remote
Debian-specific: no
CVE ID         : CVE-2006-4436
BugTraq ID     : 19712
Debian Bug     : 385894

A flaw has been found in isakmpd, OpenBSD's implementation of the
Internet Key Exchange protocol, that caused Security Associations to be
created with a replay window of 0 when isakmpd was acting as the
responder during SA negotiation.  This could allow an attacker to
re-inject sniffed IPsec packets, which would not be checked against the
replay counter.

For the stable distribution (sarge) this problem has been fixed in
version 20041012-1sarge1

For the unstable distribution (sid) this problem has been fixed in
version 20041012-4

We recommend that you upgrade your isakmpd 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 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 3.1 alias sarge
- --------------------------------

  Source archives:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1.dsc
      Size/MD5 checksum:      661 35e8865c2759c66f01c0563a4bdfc124
    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1.diff.gz
      Size/MD5 checksum:    68877 90e47af5080893c9ccf7d38aebef6760
    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012.orig.tar.gz
      Size/MD5 checksum:   373941 e6d25a9e232fb186e1a48dc06453bd57

  Alpha architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_alpha.deb
      Size/MD5 checksum:   708414 e6894a5a6c7a4586f2c22d28cd0a8f84

  AMD64 architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_amd64.deb
      Size/MD5 checksum:   544652 43df55b5251b4cbb2bf3c4fe3528827f

  ARM architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_arm.deb
      Size/MD5 checksum:   473492 92e5b4ae0fbbb14104d39fe0b1a24597

  HP Precision architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_hppa.deb
      Size/MD5 checksum:   535124 d97d6a0357c332c72a8ac313a7f1c301

  Intel IA-32 architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_i386.deb
      Size/MD5 checksum:   497670 0a58ae7ef43c38853a58d430389d1840

  Intel IA-64 architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_ia64.deb
      Size/MD5 checksum:   786026 f8e473ef442260b13076aa6add875c99

  Motorola 680x0 architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_m68k.deb
      Size/MD5 checksum:   421268 3f57254cfdded5e2615f4c3b277133e9

  Big endian MIPS architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_mips.deb
      Size/MD5 checksum:   568914 cf14999a58edbb20545d8a63f7311f87

  Little endian MIPS architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_mipsel.deb
      Size/MD5 checksum:   567060 38fca5d17f6be2c843f92aed15ac3830

  PowerPC architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_powerpc.deb
      Size/MD5 checksum:   555978 f3786f6d0f4e556587b372a753184cca

  IBM S/390 architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_s390.deb
      Size/MD5 checksum:   548240 e9cbc0d97b19aac56686d7384de1c219

  Sun Sparc architecture:

    https://security.debian.org/pool/updates/main/i/isakmpd/isakmpd_20041012-1sarge1_sparc.deb
      Size/MD5 checksum:   514166 7318cf5d5f419d5d00b45faf6d5bc3e1


  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
Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

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