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Debian: New zhcon packages fix unauthorised file access Print E-mail
User Rating:      How can I rate this item?
Posted by Joseph Shakespeare   
Debian Erik Sjölund discovered that zhcon, a fast console CJK system using the Linux framebuffer, accesses a user-controlled configuration file with elevated privileges. Thus, it is possible to read arbitrary files.
- --------------------------------------------------------------------------
Debian Security Advisory DSA 655-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
January 25th, 2005                         http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : zhcon
Vulnerability  : missing privilege release
Problem-Type   : local
Debian-specific: no
CVE ID         : CAN-2005-0072

Erik Sjölund discovered that zhcon, a fast console CJK system using
the Linux framebuffer, accesses a user-controlled configuration file
with elevated privileges.  Thus, it is possible to read arbitrary
files.

For the stable distribution (woody) this problem has been fixed in
version 0.2-4woody3.

For the unstable distribution (sid) this problem will be fixed soon.

We recommend that you upgrade your zhcon 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/z/zhcon/zhcon_0.2-4woody3.dsc
      Size/MD5 checksum:      571 cef550eb0e12c8841fb19dec63b57c18
    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3.diff.gz
      Size/MD5 checksum:    18162 5757142ee30a5d3e990180a44bfbf8cd
    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2.orig.tar.gz
      Size/MD5 checksum:  4727022 7a15d08e903c0d40f1f659b23185c4c0

  Alpha architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_alpha.deb
      Size/MD5 checksum:  4577314 574567f7d5ff0c730d7c8403da284d62

  ARM architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_arm.deb
      Size/MD5 checksum:  4566364 e9cc7274596bd612b85b832945d4fedc

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_i386.deb
      Size/MD5 checksum:  4549436 adcaa080b69de7c3d7de5d5c58bd2ee6

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_ia64.deb
      Size/MD5 checksum:  4594976 ff8e34b0df2d5548918698972ae71ac4

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_hppa.deb
      Size/MD5 checksum:  4590474 68576eb8887b9bda98afc3548704d491

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_m68k.deb
      Size/MD5 checksum:  4545894 419dcce4d28053e9527888f064dd9a9d

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_mips.deb
      Size/MD5 checksum:  4557002 70955d5fd0205214a4add453ebda3c9c

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_mipsel.deb
      Size/MD5 checksum:  4555974 81e127f1ebecb1519ccc08472909a6cc

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_powerpc.deb
      Size/MD5 checksum:  4548730 7d99eb0b961e83cf9067355c39ba656b

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_s390.deb
      Size/MD5 checksum:  4544774 172e282c5c27a5d12a2e3b709b7e89c2

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/z/zhcon/zhcon_0.2-4woody3_sparc.deb
      Size/MD5 checksum:  4546018 f6d5b53efb642de658498c091884ff7e


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

- ---------------------------------------------------------------------------------
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
 
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