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UNIRAS Brief - 119/04 - Debian Security briefing


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   UNIRAS (UK Govt CERT) Briefing Notice - 119/04 dated 12.03.04  Time: 13:45  
  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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Debian Security Advisory DSA 461-1:New calife packages fix buffer overflow.


Calife, a program which provides super user privileges to specific users, was found
to contain a buffer overflow related to the getpass(3) library function.  A local attacker
could potentially exploit this vulnerability, given knowledge of a local user's password
and the presence of at least one entry in /etc/calife.auth, to execute arbitrary code 
with root privileges.

            ESB-2004.0203 -- Debian Security Advisory DSA 461-1
                               12 March 2004

Product:                calife
Publisher:              Debian
Operating System:       Debian GNU/Linux 3.0
Impact:                 Root Compromise
Access Required:        Existing Account
CVE Names:              CAN-2004-0188

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Debian Security Advisory DSA 461-1                     security@xxxxxxxxxx
http://www.debian.org/security/                             Matt Zimmerman
March 11th, 2004                        http://www.debian.org/security/faq
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Package        : calife
Vulnerability  : buffer overflow
Problem-Type   : local
Debian-specific: no
CVE Ids        : CAN-2004-0188
Debian bug     : 235157

Calife, a program which provides super user privileges to specific users, was found to contain a buffer overflow related to the
getpass(3) library function.  A local attacker could potentially exploit this vulnerability, given knowledge of a local user's password and the presence of at least one entry in /etc/calife.auth, to execute arbitrary code with root privileges.

For the current stable distribution (woody) this problem has been fixed in version 2.8.4c-1woody1.

For the unstable distribution (sid) this problem has been fixed in version 2.8.6-1.

We recommend that you update your calife 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:

      Size/MD5 checksum:      573 8def6850642ea48816f119986071c08c
      Size/MD5 checksum:     5929 787f026768175eedd4faa087468bf07e
      Size/MD5 checksum:    67628 c78ff2bc3d3d42903d12b54e841a400f

  Alpha architecture:

      Size/MD5 checksum:    24528 1f19f26e3739df4767249dc5f46dbde7

  ARM architecture:

      Size/MD5 checksum:    22086 fb858512bda4128cb6a7c5d73d3c7043

  Intel IA-32 architecture:

      Size/MD5 checksum:    22446 03096dc8a5bd5b020fa6e6d27591d780

  Intel IA-64 architecture:

      Size/MD5 checksum:    26084 b77f33b501c0402c6882922431161ba3

  HP Precision architecture:

      Size/MD5 checksum:    22922 620682272cbacd5dae78f2842555265c

  Motorola 680x0 architecture:

      Size/MD5 checksum:    22208 7f904162126847bd6cdedb536321841f

  Big endian MIPS architecture:

      Size/MD5 checksum:    22658 2b6f0cf00246471330f2297fd747d63b

  Little endian MIPS architecture:

      Size/MD5 checksum:    22614 a5228887a678ff52d1a68e03df4d7f56

  PowerPC architecture:

      Size/MD5 checksum:    22698 efaddbb63bed475b34ed5188b06cf8b5

  IBM S/390 architecture:

      Size/MD5 checksum:    22928 5020310cf3c4800fde1f0a26b0ac0f3d

  Sun Sparc architecture:

      Size/MD5 checksum:    24936 75c41bd8275d8be77d289ae4aaaea0d8

  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>
Version: GnuPG v1.2.4 (GNU/Linux)

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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.

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. 
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