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ESB-2006.0898 -- [Debian] -- New gnupg packages fix arbitrary code execution

Date: 11 December 2006
References: ESB-2006.0871  

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                         ESB-2006.0898 -- [Debian]
              New gnupg packages fix arbitrary code execution
                             11 December 2006

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              gnupg
Publisher:            Debian
Operating System:     Debian GNU/Linux 3.1
Impact:               Execute Arbitrary Code/Commands
Access:               Remote/Unauthenticated
CVE Names:            CVE-2006-6235 CVE-2006-6169

Ref:                  ESB-2006.0871

Original Bulletin:    http://www.debian.org/security/2006/dsa-1231

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- - --------------------------------------------------------------------------
Debian Security Advisory DSA 1231-1                    security@debian.org
http://www.debian.org/security/                         Moritz Muehlenhoff
December 9th, 2006                      http://www.debian.org/security/faq
- - --------------------------------------------------------------------------

Package        : gnupg
Vulnerability  : several
Problem-Type   : local(remote)
Debian-specific: no
CVE ID         : CVE-2006-6169 CVE-2006-6235
Debian Bug     : 401894 401898 401914

Several remote vulnerabilities have been discovered in the GNU privacy,
a free PGP replacement, which may lead to the execution of arbitrary code.
The Common Vulnerabilities and Exposures project identifies the following
problems:

CVE-2006-6169

    Werner Koch discovered that a buffer overflow in a sanitising function
    may lead to execution of arbitrary code when running gnupg
    interactively.

CVE-2006-6235

    Tavis Ormandy discovered that parsing a carefully crafted OpenPGP
    packet may lead to the execution of arbitrary code, as a function
    pointer of an internal structure may be controlled through the
    decryption routines.

For the stable distribution (sarge) these problems have been fixed in
version 1.4.1-1.sarge6.

For the upcoming stable distribution (etch) these problems have been
fixed in version 1.4.6-1.

For the unstable distribution (sid) these problems have been fixed in
version 1.4.6-1.

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

  Source archives:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6.dsc
      Size/MD5 checksum:      680 f99d9936fdb3d87b37f719d4f507702a
    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6.diff.gz
      Size/MD5 checksum:    22889 219b13435d4594c530614638590b65d3
    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1.orig.tar.gz
      Size/MD5 checksum:  4059170 1cc77c6943baaa711222e954bbd785e5

  Alpha architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_alpha.deb
      Size/MD5 checksum:  2156230 950520b2391eb6444593c66a8e96d6c3

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_amd64.deb
      Size/MD5 checksum:  1963738 589ab9ab433e000e919a38f558f54f5e

  ARM architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_arm.deb
      Size/MD5 checksum:  1899822 158ed8fe21da9e2b8c730b3b2acce9a8

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_hppa.deb
      Size/MD5 checksum:  2004374 9daff80c38cf65bb299fb5ee370d44d6

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_i386.deb
      Size/MD5 checksum:  1909194 8752d3578b55a7fd1535bba18ca0770c

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_ia64.deb
      Size/MD5 checksum:  2325806 38fa7bb8def3d1a296aa6aa3432561a3

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_m68k.deb
      Size/MD5 checksum:  1811222 f51182d8badb7c2b0ef42b78c71be16d

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_mips.deb
      Size/MD5 checksum:  2001184 cc087abacd572bed64a2ab191d863946

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_mipsel.deb
      Size/MD5 checksum:  2007888 c42342dd898361ed9fcee1bdc8edc3e2

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_powerpc.deb
      Size/MD5 checksum:  1958036 ff8ee1d008561ce87732847e895024ec

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_s390.deb
      Size/MD5 checksum:  1967406 693212d3c1b12bf7f6f204daa0531f6a

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/g/gnupg/gnupg_1.4.1-1.sarge6_sparc.deb
      Size/MD5 checksum:  1897740 3821e5e9e69241324d781fe78ed1ace7


  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@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
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                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================

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