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Category:  Application (News)  >  GKrellM Newsticker Vendors:  gk-newsticker.sourceforge.net
(Debian Issues Fix) GKrellM Newsticker Lets Remote Users Execute Arbitrary Shell Commands on the Target User's Client
SecurityTracker Alert ID:  1006642
CVE Reference:  CAN-2003-0205   (Links to External Site)
Date:  Apr 24 2003
Impact:  Denial of service via network, Execution of arbitrary code via network, User access via network
Fix Available:  Yes   Vendor Confirmed:  Yes  
Version(s): 0.3, possibly 0.3.5
Description:  Two vulnerabilities were reported in the GKrellM Newsticker plug-in. A remote server can execute arbitrary shell commands on the target user's system in certain cases or cause the target user's GKrellM system to crash.

It is reported that a malicious RDF news feed can provide URLs containing special shell characters so that, when the target user clicks on the affected ticker title, arbitrary shell commands will be executed on the target user's host.

It is also reported that the news ticker software can cause the entire GKrellM system to crash via an RDF file that has a link or a title element that is not limited to a single line. A remote user (acting as a server) could supply a specially crafted RDF file to cause the target user's GKrellM application to crash.

Brian Campbell is credited with discovering these flaws.
Impact:  A remote user (acting as a server) can execute arbitrary shell commands on the target user's system.

A remote user (acting as a server) can cause the target user's GKrellM system to crash.
Solution:  Debian has released a fix in version 0.3-3.1 for the stable distribution (woody). The old stable distribution (potato) is reportedly not affected. The unstable distribution (sid) is not yet fixed.

Debian GNU/Linux 3.0 alias woody:

Source archives:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1.dsc
Size/MD5 checksum: 736 48df0aef0622167773057cd7bf0fd17f
http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1.diff.gz
Size/MD5 checksum: 2468 bc17c9c128b8a2550f7812dae9f4b163
http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3.orig.tar.g z
Size/MD5 checksum: 25849 41a647c4671f6801ed9b3a3de7d414ca

Alpha architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gk rellm-newsticker_0.3-3.1_alpha.deb
Size/MD5 checksum: 43506 47726e8c350b581bbf453f5d5c231dbd

ARM architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_arm.deb
Size/MD5 checksum: 37756 addfe4f87f35f0243a83b0e5e9286646

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3 .1_i386.deb
Size/MD5 checksum: 36030 48cc15c0da005d6b53757dfcee318dd0

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/g/gkrel lm-newsticker/gkrellm-newsticker_0.3-3.1_ia64.deb
Size/MD5 checksum: 47160 f195d6caee4c186ed2ee6921eb454daa

HP Precision architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_hppa.deb
Size/MD5 checksum: 43974 5140d9e63e1647ff314c0c4044ddd4d3

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/ gkrellm-newsticker_0.3-3.1_m68k.deb
Size/MD5 checksum: 42164 3a2f0b85e3c7d6ee741c121f719c33ad

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_mips.deb
Size/MD5 checksum: 36786 84ba4b61bd0c3c32459829a27ed1b010

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticke r_0.3-3.1_mipsel.deb
Size/MD5 checksum: 35532 ead6c8290f38890b11188406c990180d

PowerPC architecture:

http://security.debian.org/pool/updates/main/g/ gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_powerpc.deb
Size/MD5 checksum: 41210 cb1ee388ea55ce2d4e5e7d7f2af1cf52

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_s390.deb
Size/MD5 checksum: 42644 1c1bc26dcf280c12df5785c6ba6afe24

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gk rellm-newsticker_0.3-3.1_sparc.deb
Size/MD5 checksum: 39512 4a731f1d3ff438ab0d8b2fd3852a45a0
Vendor URL:  gk-newsticker.sourceforge.net/ (Links to External Site)
Cause:  Exception handling error, Input validation error
Underlying OS:  Linux (Debian)
Underlying OS Comments:  3.0
Reported By:  joey@infodrom.org (Martin Schulze)
Message History:   This archive entry is a follow-up to the message listed below.
Apr 24 2003 GKrellM Newsticker Lets Remote Users Execute Arbitrary Shell Commands on the Target User's Client


 Source Message Contents
Date:  Wed, 23 Apr 2003 18:00:12 +0200 (CEST)
From:  joey@infodrom.org (Martin Schulze)
Subject:  [SECURITY] [DSA 294-1] New gkrellm-newsticker packages fix DoS and arbitrary command execution

 

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 294-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
April 23rd, 2003                        http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : gkrellm-newsticker
Vulnerability  : missing quoting, incomplete parser
Problem-Type   : remote
Debian-specific: no
CVE Ids        : CAN-2003-0205 CAN-2003-0206

Brian Campbell discovered two security-related problems in
gkrellm-newsticker, a plugin for the gkrellm system monitor program,
which provides a news ticker from RDF feeds.  The Common
Vulnerabilities and Exposures project identifies the following
problems:

CAN-2003-0205

  It can launch a web browser of the user's choice when the ticker
  title is clicked by using the URI given by the feed.  However,
  special shell characters are not properly escaped enabling a
  malicious feed to execute arbitrary shell commands on the clients
  machine.

CAN-2003-0206

  It crashes the entire gkrellm system on feeds where link or title
  elements are not entirely on a single line.  A malicious server
  could therefore craft a denial of service.

For the stable distribution (woody) these problems have been fixed in
version 0.3-3.1

The old stable distribution (potato) is not affected since it doesn't
contain gkrellm-newsticker packages.

For the unstable distribution (sid) these problems is not yet fixed.

We recommend that you upgrade your gkrellm-newsticker 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/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1.dsc
      Size/MD5 checksum:      736 48df0aef0622167773057cd7bf0fd17f
    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1.diff
.gz
      Size/MD5 checksum:     2468 bc17c9c128b8a2550f7812dae9f4b163
    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3.orig.tar
.gz
      Size/MD5 checksum:    25849 41a647c4671f6801ed9b3a3de7d414ca

  Alpha architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_alph
a.deb
      Size/MD5 checksum:    43506 47726e8c350b581bbf453f5d5c231dbd

  ARM architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_arm.
deb
      Size/MD5 checksum:    37756 addfe4f87f35f0243a83b0e5e9286646

  Intel IA-32 architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_i386
.deb
      Size/MD5 checksum:    36030 48cc15c0da005d6b53757dfcee318dd0

  Intel IA-64 architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_ia64
.deb
      Size/MD5 checksum:    47160 f195d6caee4c186ed2ee6921eb454daa

  HP Precision architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_hppa
.deb
      Size/MD5 checksum:    43974 5140d9e63e1647ff314c0c4044ddd4d3

  Motorola 680x0 architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_m68k
.deb
      Size/MD5 checksum:    42164 3a2f0b85e3c7d6ee741c121f719c33ad

  Big endian MIPS architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_mips
.deb
      Size/MD5 checksum:    36786 84ba4b61bd0c3c32459829a27ed1b010

  Little endian MIPS architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_mips
el.deb
      Size/MD5 checksum:    35532 ead6c8290f38890b11188406c990180d

  PowerPC architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_powe
rpc.deb
      Size/MD5 checksum:    41210 cb1ee388ea55ce2d4e5e7d7f2af1cf52

  IBM S/390 architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_s390
.deb
      Size/MD5 checksum:    42644 1c1bc26dcf280c12df5785c6ba6afe24

  Sun Sparc architecture:

    http://security.debian.org/pool/updates/main/g/gkrellm-newsticker/gkrellm-newsticker_0.3-3.1_spar
c.deb
      Size/MD5 checksum:    39512 4a731f1d3ff438ab0d8b2fd3852a45a0


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

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