DSA 675-1: New hztty packages fix local utmp exploit
Posted on: 02/10/2005 05:17 PM

New hztty packages are available for Debian GNU/Linux

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Debian Security Advisory DSA 675-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
February 10th, 2005 http://www.debian.org/security/faq
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Package : hztty
Vulnerability : privilege escalation
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2005-0019

Erik Sjölund discovered that hztty, a converter for GB, Big5 and zW/HZ Chinese encodings in a tty session, can be triggered to execute arbitrary commands with group utmp privileges.

For the stable distribution (woody) this problem has been fixed in version 2.0-5.2woody2.

For the unstable distribution (sid) this problem has been fixed in version 2.0-6.1.

We recommend that you upgrade your hztty 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/h/hztty/hztty_2.0-5.2woody2.dsc
Size/MD5 checksum: 560 921462207b6301fc73d8d2613fbaa856
http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2.diff.gz
Size/MD5 checksum: 4158 910c17cb2807c3cd7d2df62d28f016a5
http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0.orig.tar.gz
Size/MD5 checksum: 229189 7ec5907ad55825780274b8a77b217e21

Alpha architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_alpha.deb
Size/MD5 checksum: 153974 56ea5146bfcbed6392913a2dd697ac4d

ARM architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_arm.deb
Size/MD5 checksum: 149808 a509091afb9f413571030158d8e172d8

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_i386.deb
Size/MD5 checksum: 149432 b5b290876059e43bf376d3f22546ad06

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_ia64.deb
Size/MD5 checksum: 157178 652c2a0a544458bca793e3b26fe64cdc

HP Precision architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_hppa.deb
Size/MD5 checksum: 153452 ca39d351f20620a31679b21312bf5d57

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_m68k.deb
Size/MD5 checksum: 149214 b2a2faee53606c7a2599da89e7dc0779

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_mips.deb
Size/MD5 checksum: 152704 2c94a83690bfaf39d26d5dadddfdd63e

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_mipsel.deb
Size/MD5 checksum: 152788 3ef6e11ca5cec6b8e077c22b99552bc5

PowerPC architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_powerpc.deb
Size/MD5 checksum: 150376 a9742687aec8d26f95bef974bb4de317

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_s390.deb
Size/MD5 checksum: 151002 7607b570894e11c9d3eeb8c84bf5e009

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/h/hztty/hztty_2.0-5.2woody2_sparc.deb
Size/MD5 checksum: 153880 3b8cc02ca85fcb1add110a01c700446f


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


Printed from Linux Compatible (http://www.linuxcompatible.org/news/story/dsa_675_1_new_hztty_packages_fix_local_utmp_exploit.html)