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ESB-2009.1385 - [Debian] wget: Access privileged data - Remote with user interaction

Date: 12 October 2009
References: ESB-2009.1376  ESB-2009.1468  

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

                               ESB-2009.1385
        New wget packages fix SSL certificate verification weakness
                              12 October 2009

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

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

Product:           wget
Publisher:         Debian
Operating System:  Debian GNU/Linux 4
                   Debian GNU/Linux 5
Impact/Access:     Access Privileged Data         -- Remote with User Interaction
                   Provide Misleading Information -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-3490  

Reference:         ESB-2009.1376

Original Bulletin: 
   http://www.debian.org/security/2009/dsa-1904

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- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1904-1                  security@debian.org
http://www.debian.org/security/                      Giuseppe Iuculano
October 09, 2009                      http://www.debian.org/security/faq
- - ------------------------------------------------------------------------

Package        : wget
Vulnerability  : insufficient input validation
Problem type   : remote
Debian-specific: no
Debian bug     : 549293
CVE ID         : CVE-2009-3490


Daniel Stenberg discovered that wget, a network utility to retrieve files from
the Web using http(s) and ftp, is vulnerable to the "Null Prefix Attacks Against
SSL/TLS Certificates" published at the Blackhat conference some time ago.  This
allows an attacker to perform undetected man-in-the-middle attacks via a crafted
ITU-T X.509 certificate with an injected null byte in the Common Name field.


For the oldstable distribution (etch), this problem has been fixed in
version 1.10.2-2+etch1.

For the stable distribution (lenny), this problem has been fixed in
version 1.11.4-2+lenny1.

For the testing distribution (squeeze), this problem will be fixed soon.

For the  unstable distribution (sid), this problem has been fixed in
version 1.12-1.


We recommend that you upgrade your wget 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
- - -------------------------------

Debian (oldstable)
- - ------------------

Oldstable updates are available for alpha, amd64, arm, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1.diff.gz
    Size/MD5 checksum:    17947 116250977db43cb1981600c9722b7faa
  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2.orig.tar.gz
    Size/MD5 checksum:  1213056 795fefbb7099f93e2d346b026785c4b8
  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1.dsc
    Size/MD5 checksum:      630 8e9e518014d108e22e446d575e9e1168

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_alpha.deb
    Size/MD5 checksum:   632362 f19446ca13a7e62f905275c4308d7e3d

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_amd64.deb
    Size/MD5 checksum:   617446 f4d7c11ef4d36351cd4a2f9f2c165cab

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_arm.deb
    Size/MD5 checksum:   618108 ddcb9b8a1d776be025f5de75ecb8a0fe

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_hppa.deb
    Size/MD5 checksum:   622558 185317958f3aff3e0e90bc424f08742e

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_i386.deb
    Size/MD5 checksum:   612200 3dc181c1b15d6ed6bdbd7444eb6881fe

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_ia64.deb
    Size/MD5 checksum:   681302 f804ce6ede1c42e5c9e5b8344815e117

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_mipsel.deb
    Size/MD5 checksum:   625230 9c3f15e0101a2a4db24542b99e43c04e

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_powerpc.deb
    Size/MD5 checksum:   616572 5559c76d550b476fd0c7b39313b39c7e

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_s390.deb
    Size/MD5 checksum:   633186 c87a49b6cd732a4ed939dbc6e0987487

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.10.2-2+etch1_sparc.deb
    Size/MD5 checksum:   613854 482079e2a4f02cbe65ac956fa10e7a9b


Debian GNU/Linux 5.0 alias lenny
- - --------------------------------

Debian (stable)
- - ---------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1.dsc
    Size/MD5 checksum:     1060 ae958363f4aca0f82943525780a37f92
  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4.orig.tar.gz
    Size/MD5 checksum:  1475149 69e8a7296c0e12c53bd9ffd786462e87
  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1.diff.gz
    Size/MD5 checksum:    17216 0052572de990c970b9514069710d9110

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_alpha.deb
    Size/MD5 checksum:   632288 777d76cf4e0a7f2bc49224d6ec6a4cda

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_amd64.deb
    Size/MD5 checksum:   613794 a121ac028974b67cf286dfe7560c4ed2

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_arm.deb
    Size/MD5 checksum:   606644 81b325d3c2efb094d96a09b206e34c6d

armel architecture (ARM EABI)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_armel.deb
    Size/MD5 checksum:   610024 e1d21da770447aa898b5187cf2dcacaa

hppa architecture (HP PA RISC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_hppa.deb
    Size/MD5 checksum:   622886 07d0613a2671662f48a459b47f73b09c

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_i386.deb
    Size/MD5 checksum:   608204 496dee8ea297c44aebddb3d06edb523f

ia64 architecture (Intel ia64)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_ia64.deb
    Size/MD5 checksum:   677072 f37fad1af67e867b4e81a9dd6d91a4a3

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_mips.deb
    Size/MD5 checksum:   621116 b3fda98dfaf8336cd3177f30bf7fef31

mipsel architecture (MIPS (Little Endian))

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_mipsel.deb
    Size/MD5 checksum:   620714 ef700d4ba26217679fe5cc47aa47424f

powerpc architecture (PowerPC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_powerpc.deb
    Size/MD5 checksum:   623630 210a22400278197bf803addabdcea224

s390 architecture (IBM S/390)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_s390.deb
    Size/MD5 checksum:   622148 6a9f410d08a44ae59fa7d259273158c1

sparc architecture (Sun SPARC/UltraSPARC)

  http://security.debian.org/pool/updates/main/w/wget/wget_1.11.4-2+lenny1_sparc.deb
    Size/MD5 checksum:   608454 a9ea995706e45f9b106fd7ed7ddbf252


  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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        http://www.auscert.org.au/render.html?it=3192

===========================================================================
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)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
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