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Debian Security Advisory DSA 843-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
October 5th, 2005                       http://www.debian.org/security/faq
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Package        : arc
Vulnerability  : insecure temporary file
Problem type   : local
Debian-specific: no
CVE ID         : CAN-2005-2945 CAN-2005-2992

Two vulnerabilities have been discovered in the ARC archive program
under Unix.  The Common Vulnerabilities and Exposures project
identifies the following problems:

CAN-2005-2945

    Eric Romang discovered that the ARC archive program under Unix
    creates a temporary file with insecure permissions which may lead
    to an attacker stealing sensitive information.

CAN-2005-2992

    Joey Schulze discovered that the temporary file was created in an
    insecure fashion as well, leaving it open to a classic symlink
    attack.

The old stable distribution (woody) does not contain arc packages.

For the stable distribution (sarge) these problems have been fixed in
version 5.21l-1sarge1.

For the unstable distribution (sid) these problems have been fixed in
version 5.21m-1.

We recommend that you upgrade your arc 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 3.1 alias sarge
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  Source archives:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1.dsc
      Size/MD5 checksum:      552 4ebba22896668e091043fb909dd7f0b7
    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1.diff.gz
      Size/MD5 checksum:     3323 1c70a26064195b6664b296313c73cbc0
    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l.orig.tar.gz
      Size/MD5 checksum:    82134 f30654fbe80640f0219c33d0f2f64021

  Alpha architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_alpha.deb
      Size/MD5 checksum:    67312 081b0a1573d4f3a2ce35e937200a56bd

  AMD64 architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_amd64.deb
      Size/MD5 checksum:    60646 c8edb347de5f20d8f17a93bde98fc9fd

  ARM architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_arm.deb
      Size/MD5 checksum:    57442 2ad784c9a055046c2e47990ae8155001

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_i386.deb
      Size/MD5 checksum:    55506 f8c3fb1adb553abbcceabdeb5a3aea82

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_ia64.deb
      Size/MD5 checksum:    73842 d70cebf9b47a8630692450476fe9062c

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_hppa.deb
      Size/MD5 checksum:    62028 a33d986f66f7ca3d5f582fbf495bb45f

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_m68k.deb
      Size/MD5 checksum:    52462 51ad27d071bb88b938de56b58dbe6d0e

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_mips.deb
      Size/MD5 checksum:    64456 6991489144d5381fe19b73edc104f7a3

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_mipsel.deb
      Size/MD5 checksum:    64228 c0ba8aaac79f6547d13db04ba13b39bd

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_powerpc.deb
      Size/MD5 checksum:    60004 85870f99024711bdf1bc5ed32398ce07

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_s390.deb
      Size/MD5 checksum:    60052 5adb2907170ef095d50daf397193cfa2

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/a/arc/arc_5.21l-1sarge1_sparc.deb
      Size/MD5 checksum:    57084 88ec040ae647afb844d1c98a4c7a77a7


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

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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
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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