LinuxSecurity.com
Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Welcome!
Sign up!
EnGarde Community
Login
Polls
What is the most important Linux security technology?
 
Advisories
Community
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
SELinux
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Securitydistro
Latest Newsletters
Linux Security Week: September 2nd, 2014
Linux Advisory Watch: August 29th, 2014
Subscribe
LinuxSecurity Newsletters
E-mail:
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

  
Debian: 'cfingerd' multiple vulnerabilities Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Debian Buffer overflow and format string attack vulnerabilities exist in previous versions of cfingerd.

------------------------------------------------------------------------
Debian Security Advisory DSA-066-1                   security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
July 11, 2001
------------------------------------------------------------------------


Package        : cfingerd
Problem type   : remote exploit
Debian-specific: no

Steven van Acker reported on bugtraq that the version of cfingerd (a
configurable finger daemon) as distributed in Debian GNU/Linux 2.2
suffers from two problems:

1. The code that reads configuration files (files in which $ commands are
   expanded) copied its input to a buffer without checking for a buffer
   overflow. When the ALLOW_LINE_PARSING feature is enabled that code
   is used for reading users files as well, so local users could exploit
   this.

2. There also was a printf call in the same routine that did not protect
   against printf format attacks.

Since ALLOW_LINE_PARSING is enabled in the default /etc/cfingerd.conf
local users could use this to gain root access.

This has been fixed in version 1.4.1-1.2, and we recommend that you upgrade
your cfingerd package immediately.

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.


Debian GNU/Linux 2.2 alias potato
---------------------------------

  Potato was released for alpha, arm, i386, m68k, powerpc and sparc.

  Source archives:
     http://security.debian.org/dists/stable/updates/main/source/cfingerd_1.4.1-1.2.diff.gz
      MD5 checksum: e1e5ed3fe85f2af5304b9f0d3d236a91
     http://security.debian.org/dists/stable/updates/main/source/cfingerd_1.4.1-1.2.dsc
      MD5 checksum: 966e205737bcd43182d01114694ed52a
     http://security.debian.org/dists/stable/updates/main/source/cfingerd_1.4.1.orig.tar.gz
      MD5 checksum: 0461179bca7bb9b00fb23c0886666cb0

  Alpha architecture:
     http://security.debian.org/dists/stable/updates/main/binary-alpha/cfingerd_1.4.1-1.2_alpha.deb
      MD5 checksum: 9c43dd39460c58ed6a0134333349e2f9

  ARM architecture:
     http://security.debian.org/dists/stable/updates/main/binary-arm/cfingerd_1.4.1-1.2_arm.deb
      MD5 checksum: 70da6073d42fbbdd29a025517127ebb0

  Intel IA-32 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-i386/cfingerd_1.4.1-1.2_i386.deb
      MD5 checksum: 2281e1aa8dc439680b1df546a5139aae

  Motorola 680x0 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-m68k/cfingerd_1.4.1-1.2_m68k.deb
      MD5 checksum: 19bf9fbcf1d2e1d7d38ff5bd00c6dc0a

  PowerPC architecture:
     http://security.debian.org/dists/stable/updates/main/binary-powerpc/cfingerd_1.4.1-1.2_powerpc.deb
      MD5 checksum: 383389307d0ebd11b3f8a20abe1395a9

  Sun Sparc architecture:
     http://security.debian.org/dists/stable/updates/main/binary-sparc/cfingerd_1.4.1-1.2_sparc.deb
      MD5 checksum: 1e734a8573e1c05d8e07ffcc8543c4e9

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

For not yet released architectures please refer to the appropriate
directory  ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ .

--
----------------------------------------------------------------------------
apt-get: deb  http://security.debian.org/ stable/updates main
dpkg-ftp:  ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org



 
< Prev   Next >
    
Partner

 

Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
CryptoWall’s Haul: $1M in Six Months
A Google Site Meant to Protect You Is Helping Hackers Attack You
The Main Suspect Blamed For The Jennifer Lawrence Nude Leak Says He Is Innocent
Inside Google's Secret Drone-Delivery Program
Hackers Build a Skype That’s Not Controlled by Microsoft
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2014 Guardian Digital, Inc. All rights reserved.