[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

UNIRAS Brief - 837/06 - Debian Security Advisory: DSA-1240-1 - New links2 packages fix arbitrary shell command execution



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

______________________________________________________________________________

 UNIRAS (UK Government CERT) Briefing - 837/06 dated 21.12.06 time 13:35
 UNIRAS is part of NISCC (the UK National Infrastructure Security
 Co-ordination Centre)
______________________________________________________________________________

 UNIRAS material is available from the NISCC website at www.niscc.gov.uk
______________________________________________________________________________

Title
=====

Debian Security Advisory: DSA-1240-1 - New links2 packages fix arbitrary 
shell command execution

Detail
======

Teemu Salmela discovered that the links2 character mode web browser performs 
insufficient sanitising of smb:// URIs, which might lead to the execution 
of arbitrary shell commands.


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


- - ------------------------------------------------------------------------
Debian Security Advisory DSA-1240-1                  security@xxxxxxxxxx
http://www.debian.org/security/                               Steve Kemp
December 21, 2006
- - ------------------------------------------------------------------------

Package        : links2
Vulnerability  : insufficient escaping
Problem type   : remote
Debian-specific: no
CVE Id(s)      : CVE-2006-5925
Debian Bug     : 400718

Teemu Salmela discovered that the links2 character mode web browser performs insufficient sanitising of smb:// URIs, which might
lead to the execution of arbitrary shell commands.

For the stable distribution (sarge) this problem has been fixed in version 2.1pre16-1sarge1.

For the upcoming stable distribution (etch) this problem has been fixed in version 2.1pre26-1.

For the unstable distribution (sid) this problem has been fixed in version 2.1pre26-1.

We recommend that you upgrade your links2 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 3.1 (stable)
- - -------------------

Stable updates are available for alpha, amd64, arm, hppa, i386, ia64, m68k, mips, mipsel, powerpc, s390 and sparc.

Source archives:

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1.diff.gz
    Size/MD5 checksum:    28658 a83c79990bbfb6f9ec26d737f767ee90
  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16.orig.tar.gz
    Size/MD5 checksum:  4217483 7baf4fc20cc244d80ead21cebff07d89
  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1.dsc
    Size/MD5 checksum:      841 ed4853334b7eebef055271df06cdcd7a

alpha architecture (DEC Alpha)

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_alpha.deb
    Size/MD5 checksum:  2110324 b3633fddb199c45339d3837bb0a519a0

amd64 architecture (AMD x86_64 (AMD64))

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_amd64.deb
    Size/MD5 checksum:  2040922 5fb402e6a833709741d20238346c7597

arm architecture (ARM)

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_arm.deb
    Size/MD5 checksum:  1996004 c7c79ddcb82d5758668ed71d74b9685f

i386 architecture (Intel ia32)

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_i386.deb
    Size/MD5 checksum:  1997426 4c1ef611e31c57583f7471653962a84a

m68k architecture (Motorola Mc680x0)

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_m68k.deb
    Size/MD5 checksum:  1904084 e5c777a07eaa88f4367b51d88c556a14

mips architecture (MIPS (Big Endian))

  http://security.debian.org/pool/updates/main/l/links2/links2_2.1pre16-1sarge1_mips.deb
    Size/MD5 checksum:  2034596 22854de6eaf3aa1e392291760e85e5e8


  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@xxxxxxxxxxxxxxxx
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQFFil26wM/Gs81MDZ0RAvPPAJ9cxthVIvv2w2UmXuzhiiPR21aOjgCgo7J8
vA5Gql5VNhz4zm/QV5K4pig=
=JT/Q
- -----END PGP SIGNATURE-----



______________________________________________________________________________

NISCC values your feedback.

1. Which of the following most reflects the value of the briefing to you?
(Place an 'X' next to your choice)

Very useful:__ Useful:__ Not useful:__ 

2. If you did not find it useful, why not?


3. Any other comments? How could we improve our briefings?


Thank you for your contribution.
______________________________________________________________________________

For additional information or assistance, please contact our help desk
by telephone.  You may send Not Protectively Marked information via
e-mail to uniras@xxxxxxxxxxxxx

Office hours:

Mon - Fri: 08:30 - 17:00 hours
Tel: +44 (0) 870 487 0748 and follow the voice prompts
Fax: +44 (0) 870 487 0749

On-call duty officer outside office hours:
Tel: +44 (0) 870 487 0748 and follow the voice prompts

______________________________________________________________________________

UNIRAS wishes to acknowledge the contributions of Debian for the
information contained in this briefing.
______________________________________________________________________________

This notice contains 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 site of the original source to ensure that you receive the most
current information concerning that problem.

Reference to any specific commercial product, process, or service by
trade name, trademark manufacturer, or otherwise, does not constitute or
imply its endorsement, recommendation, or favouring by UNIRAS or NISCC.
The views and opinions of authors expressed within this notice shall not
be used for advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors
or omissions contained within this briefing notice. In particular, they
shall not be liable for any loss or damage whatsoever, arising from or
in connection with the usage of information contained within this
notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams
(FIRST) and has contacts with other international Incident Response
Teams (IRTs) in order to foster cooperation and coordination in incident
prevention, to prompt rapid reaction to incidents, and to promote
information sharing amongst its members and the community at large.
______________________________________________________________________________

<End of UNIRAS Briefing>

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.1

iQA/AwUBRYqMsGl7oeQsXfKvEQL/JwCdF72W0Z8fFv3p5CUPAS2WQjZOQ5AAnRxD
DLAfq6EBVnn8xmmUG5Jp3oiQ
=x0pc
-----END PGP SIGNATURE-----


______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________

______________________________________________________________________
This email has been scanned by the MessageLabs Email Security System.
For more information please visit http://www.messagelabs.com/email 
______________________________________________________________________