DSA 678-1: New netkit-rwho packages fix denial of service

New netkit-rwho packages are available for Debian GNU/Linux

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Debian Security Advisory DSA 678-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
February 11th, 2005 http://www.debian.org/security/faq
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Package : netkit-rwho
Vulnerability : missing input validation
Problem-Type : remote
Debian-specific: no
CVE ID : CAN-2004-1180

"Vlad902" discovered a vulnerability in the rwhod program that can be used to crash the listening process. The broadcasting one is unaffected. This vulnerability only affects little endian architectures (i.e. on Debian: alpha, arm, alpha, ia64, i386, mipsel and s390).

For the stable distribution (woody) this problem has been fixed in version 0.17-4woody2.

For the unstable distribution (sid) this problem has been fixed in version 0.17-8.

We recommend that you upgrade your rwhod 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/n/netkit-rwho/netkit-rwho_0.17-4woody2.dsc
Size/MD5 checksum: 573 232cc3d400360adf91f477ae6e4df1db
http://security.debian.org/pool/updates/main/n/netkit-rwho/netkit-rwho_0.17-4woody2.diff.gz
Size/MD5 checksum: 10970 67909ae8e428409b9d66e59d053df76d
http://security.debian.org/pool/updates/main/n/netkit-rwho/netkit-rwho_0.17.orig.tar.gz
Size/MD5 checksum: 20610 0f71620d45d472f89134ba0d74242e75

Alpha architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_alpha.deb
Size/MD5 checksum: 15600 9209b79116d4da8e61c042daa60d8571
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_alpha.deb
Size/MD5 checksum: 19020 20244ee92243cbf7a73fbf63ef4669df

ARM architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_arm.deb
Size/MD5 checksum: 13096 eced290e15edb12ddec5c0f4bc2f873c
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_arm.deb
Size/MD5 checksum: 17464 98c7f887ab745f562d4dcb12bf42bbbf

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_i386.deb
Size/MD5 checksum: 12692 04e8597017f17b8357aabfd12171ebfe
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_i386.deb
Size/MD5 checksum: 17364 d510fe20152828ede22d85c9e8b7eeb8

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_ia64.deb
Size/MD5 checksum: 15946 3e478d1bb74472c6cd967e7890e5d624
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_ia64.deb
Size/MD5 checksum: 20658 4f3f5a38d76c868ea028e20df6a58abf

HP Precision architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_hppa.deb
Size/MD5 checksum: 13906 5890c7723b8aad599e8605e122934a93
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_hppa.deb
Size/MD5 checksum: 18066 4c9fc358830c8ad2885779f02c246b66

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_m68k.deb
Size/MD5 checksum: 12654 f600ddc3d01ee478115438c751c0836f
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_m68k.deb
Size/MD5 checksum: 17100 d47344fcf36586bf35ba8552b924e7e9

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_mips.deb
Size/MD5 checksum: 13218 05ce9334de62e64a6031d0a397b52b8e
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_mips.deb
Size/MD5 checksum: 17120 5c7e1752201621b82154d8107e466fe0

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_mipsel.deb
Size/MD5 checksum: 13266 58bdafa0f3727901bea58b5337078dc6
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_mipsel.deb
Size/MD5 checksum: 17446 d2a3eb4211c8b7beaa502a489a08037c

PowerPC architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_powerpc.deb
Size/MD5 checksum: 13030 e472eb81db77c5e50b5756ce58c92795
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_powerpc.deb
Size/MD5 checksum: 17122 fc8bb02bcc162a54076405e1cbe7b0d0

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_s390.deb
Size/MD5 checksum: 13414 9f2dea228f0c0ed3452d26e11366a47f
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_s390.deb
Size/MD5 checksum: 17842 00320623fa238648f89a6fde1a03eefc

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/n/netkit-rwho/rwho_0.17-4woody2_sparc.deb
Size/MD5 checksum: 16062 d8b71eb71a33f4b45132a91731ab1d6e
http://security.debian.org/pool/updates/main/n/netkit-rwho/rwhod_0.17-4woody2_sparc.deb
Size/MD5 checksum: 19818 9b1462f4fbf007255f380ce632bf868c


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