DSA 705-1: New wu-ftpd packages fix denial of service

New wu-ftpd packages are available for Debian GNU/Linux

---------------------------------------------------------------------------
Debian Security Advisory DSA 705-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
April 4th, 2005 http://www.debian.org/security/faq
---------------------------------------------------------------------------

Package : wu-ftpd
Vulnerability : missing input sanitising
Problem-Type : remote
Debian-specific: no
CVE IDs : CAN-2005-0256 CAN-2003-0854

Several denial of service conditions have been discovered in wu-ftpd, the popular FTP daemon. The Common Vulnerabilities and Exposures project identifies the following problems:

CAN-2005-0256

Adam Zabrocki discovered a denial of service condition in wu-ftpd that could be exploited by a remote user and cause the server to slow down the server by resource exhaustion.

CAN-2003-0854

Georgi Guninski discovered that /bin/ls may be called from within wu-ftpd in a way that will result in large memory consumption and hence slow down the server.

For the stable distribution (woody) these problems have been fixed in version 2.6.2-3woody5.

For the unstable distribution (sid) these problems have been fixed in version 2.6.2-19.

We recommend that you upgrade your wu-ftpd 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 3.0 alias woody
---------------------------------

Source archives:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5.dsc
Size/MD5 checksum: 607 78463b3882e0d32102344bb0580e0d98
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5.diff.gz
Size/MD5 checksum: 101661 967b719c02892c867ad0d6456a5dd47a
http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2.orig.tar.gz
Size/MD5 checksum: 354784 b3c271f02aadf663b8811d1bff9da3f6

Architecture independent components:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd-academ_2.6.2-3woody5_all.deb
Size/MD5 checksum: 3484 cc6ee1aeb156077af311870f095840ab

Alpha architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_alpha.deb
Size/MD5 checksum: 292630 c164f9f2d0ae5d70587ca49ddbe543b4

ARM architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_arm.deb
Size/MD5 checksum: 265840 c86cdbc78969f755dce0facce4a1f882

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_i386.deb
Size/MD5 checksum: 255216 504af14aec48191405c08a56845d330b

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_ia64.deb
Size/MD5 checksum: 321932 ced4192d937ccedfa5a7ab2e9e77c378

HP Precision architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_hppa.deb
Size/MD5 checksum: 276624 4a1b5b6115ed1d93206c9787e8d37038

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_m68k.deb
Size/MD5 checksum: 249810 e873e950d3b234a7854ee0e4810783f5

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_mips.deb
Size/MD5 checksum: 273426 364c07d6a21f8aab43b3841ce98df8c6

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_mipsel.deb
Size/MD5 checksum: 273568 4e51f44342035b6ecafc624b1a6c06f3

PowerPC architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_powerpc.deb
Size/MD5 checksum: 268816 4072fbbb73bd8013b9a191f3aa7bd778

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_s390.deb
Size/MD5 checksum: 263638 d86fc84ab2974a80fd7407d826d8b003

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/w/wu-ftpd/wu-ftpd_2.6.2-3woody5_sparc.deb
Size/MD5 checksum: 270784 1110401bccc9035cc1b30eb8146aee18


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