Linux Security
Linux Security
Linux Security

Debian: New hztty packages fix local utmp exploit

Date 10 Feb 2005
Posted By Joe Shakespeare
Updated package
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Debian Security Advisory DSA 675-1                     This email address is being protected from spambots. You need JavaScript enabled to view it.                             Martin Schulze
February 10th, 2005           
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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:
      Size/MD5 checksum:      560 921462207b6301fc73d8d2613fbaa856
      Size/MD5 checksum:     4158 910c17cb2807c3cd7d2df62d28f016a5
      Size/MD5 checksum:   229189 7ec5907ad55825780274b8a77b217e21

  Alpha architecture:
      Size/MD5 checksum:   153974 56ea5146bfcbed6392913a2dd697ac4d

  ARM architecture:
      Size/MD5 checksum:   149808 a509091afb9f413571030158d8e172d8

  Intel IA-32 architecture:
      Size/MD5 checksum:   149432 b5b290876059e43bf376d3f22546ad06

  Intel IA-64 architecture:
      Size/MD5 checksum:   157178 652c2a0a544458bca793e3b26fe64cdc

  HP Precision architecture:
      Size/MD5 checksum:   153452 ca39d351f20620a31679b21312bf5d57

  Motorola 680x0 architecture:
      Size/MD5 checksum:   149214 b2a2faee53606c7a2599da89e7dc0779

  Big endian MIPS architecture:
      Size/MD5 checksum:   152704 2c94a83690bfaf39d26d5dadddfdd63e

  Little endian MIPS architecture:
      Size/MD5 checksum:   152788 3ef6e11ca5cec6b8e077c22b99552bc5

  PowerPC architecture:
      Size/MD5 checksum:   150376 a9742687aec8d26f95bef974bb4de317

  IBM S/390 architecture:
      Size/MD5 checksum:   151002 7607b570894e11c9d3eeb8c84bf5e009

  Sun Sparc architecture:
      Size/MD5 checksum:   153880 3b8cc02ca85fcb1add110a01c700446f

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

- ---------------------------------------------------------------------------------
For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
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