DSA 612-1: New a2ps packages fix arbitrary command execution
Posted on: 12/20/2004 09:06 AM

New a2ps packages are available for Debian GNU/Linux

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Debian Security Advisory DSA 612-1 security@debian.org
http://www.debian.org/security/ Martin Schulze
December 20th, 2004 http://www.debian.org/security/faq
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Package : a2ps
Vulnerability : unsanitised input
Problem-Type : local
Debian-specific: no
CVE ID : CAN-2004-1170
BugTraq ID : 11025
Debian Bug : 283134

Rudolf Polzer discovered a vulnerability in a2ps, a converter and pretty-printer for many formats to PostScript. The program did not escape shell meta characters properly which could lead to the execution of arbitrary commands as a privileged user if a2ps is installed as a printer filter.

For the stable distribution (woody) this problem has been fixed in version 4.13b-16woody1

For the unstable distribution (sid) this problem has been fixed in version 4.13b-4.2.

We recommend that you upgrade your a2ps 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/a/a2ps/a2ps_4.13b-16woody1.dsc
Size/MD5 checksum: 725 dadf3ab28283daaf34edeb7c69a52646
http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1.diff.gz
Size/MD5 checksum: 71239 61c84f71f4dcd123910d12264ba1f743
http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b.orig.tar.gz
Size/MD5 checksum: 1944289 0c8e0c31b08c14f7a7198ce967eb3281

Alpha architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_alpha.deb
Size/MD5 checksum: 910612 43af4a8ce22b403d25558ed7df881fba

ARM architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_arm.deb
Size/MD5 checksum: 858618 5596ea37b56f334ed06a482eabb2527b

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_i386.deb
Size/MD5 checksum: 843376 a39e6b6c1c5bf1e43a5bdb88867d8627

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_ia64.deb
Size/MD5 checksum: 980186 85c43da1b384d49f8fc5ccf91a79c666

HP Precision architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_hppa.deb
Size/MD5 checksum: 897322 53b0ba66e1c7a0840fe6373ce41cc666

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_m68k.deb
Size/MD5 checksum: 824770 56407eeee73a0316383d42250cb27f36

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_mips.deb
Size/MD5 checksum: 886682 912156733c4da9fd438940ef741f5794

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_mipsel.deb
Size/MD5 checksum: 886554 387d7b39f2ede04e518961ded2f4cb05

PowerPC architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_powerpc.deb
Size/MD5 checksum: 861318 c261076b51e733f972b75ce77510c807

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_s390.deb
Size/MD5 checksum: 854722 f5731e91bac335a40bf0b38efd134b4b

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/a/a2ps/a2ps_4.13b-16woody1_sparc.deb
Size/MD5 checksum: 852690 98bd7a3408de1f3154951f2ccf318e3d


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




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