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UNIRAS Brief - 432/03 - Debian - local buffer overflows in xconq



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 432/03 dated 31.07.03  Time: 09:45
 UNIRAS is part of NISCC(National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====

Debian Security Advisory:

local buffer overflows in xconq

Detail
====== 

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Hash: SHA1

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Debian Security Advisory DSA 354-1                     security@xxxxxxxxxx
http://www.debian.org/security/                             Matt Zimmerman
July 29th, 2003                         http://www.debian.org/security/faq
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Package        : xconq
Vulnerability  : buffer overflows
Problem-Type   : local
Debian-specific: no
CVE Ids        : CAN-2003-0607

Steve Kemp discovered a buffer overflow in xconq, in processing the
USER environment variable.  In the process of fixing this bug, a
similar problem was discovered with the DISPLAY environment
variable.  This vulnerability could be exploited by a local attacker
to gain gid 'games'.

For the current stable distribution (woody) this problem has been fixed
in version 7.4.1-2woody2.

For the unstable distribution (sid) this problem will be fixed soon.
Refer to Debian bug #202963.

We recommend that you update your xconq package.

Upgrade Instructions
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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
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  Source archives:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2.dsc
      Size/MD5 checksum:      659 21842c8a96442ba3fb5339485c8bc83e
    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2.diff.gz
      Size/MD5 checksum:    36648 4ad0be0f65d303d85cd15c7b3a0ba2aa
    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1.orig.tar.gz
      Size/MD5 checksum:  3401768 2b3eaa6ae341f64d32a4d8c361aa0456

  Architecture independent components:

    http://security.debian.org/pool/updates/main/x/xconq/xconq-common_7.4.1-2woody2_all.deb
      Size/MD5 checksum:  1243930 a5bf65b7a6f969cc6ea892dcb5561442
    http://security.debian.org/pool/updates/main/x/xconq/xconq-doc_7.4.1-2woody2_all.deb
      Size/MD5 checksum:  1279490 6ad1a14bece922518105dc59e3dec3a2

  Alpha architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_alpha.deb
      Size/MD5 checksum:   765484 901f3fa5491b5ca3cb6e9c6777d7d7fd

  ARM architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_arm.deb
      Size/MD5 checksum:   662772 40e6eebdbc310e9aa41f8d5fa703c42d

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_i386.deb
      Size/MD5 checksum:   591832 882d76656a399ff29d682926177eaf18

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_ia64.deb
      Size/MD5 checksum:  1234652 15e58939c9fa6730791ae857432e30e5

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_hppa.deb
      Size/MD5 checksum:   647046 59f689429d17a95858157d71ebbabdfe

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_m68k.deb
      Size/MD5 checksum:   545314 4f792331fd5a376676e5992b6d7523ee

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_mips.deb
      Size/MD5 checksum:   693316 0e3a8eff3df06a5612d79f49a8a1eab7

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_mipsel.deb
      Size/MD5 checksum:   690160 03a263baebbcaef62ef0ccf329ccc874

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_powerpc.deb
      Size/MD5 checksum:   585610 68313a2e1e5a5a1e8b66883894f296e9

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_s390.deb
      Size/MD5 checksum:   587336 ef95a0305f193e14ebfcc086381a15f1

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/x/xconq/xconq_7.4.1-2woody2_sparc.deb
      Size/MD5 checksum:   604292 632d2a38d285c3aea6ca240f9bd9329c

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

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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@xxxxxxxxxxxxxxxx
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>
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UNIRAS wishes to acknowledge the contributions of Debian for the information
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

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and has contacts with other international Incident Response Teams (IRTs) in 
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members and the community at large. 
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<End of UNIRAS Briefing>
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