DSA 1904-1: New wget packages fix SSL certificate verification weakness

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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
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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.

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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 lt;pkggt;' and http://packages.debian.org/lt;pkggt;
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