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 Advisory Watch: December 19th, 2014
Linux Advisory Watch: December 12th, 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: 'mailx' buffer overflow Print E-mail
User Rating:      How can I rate this item?
Posted by LinuxSecurity.com Team   
Debian The mail program (a simple tool to read and send email) as distributed with Debian GNU/Linux 2.2 has a buffer overflow in the input parsing code.

------------------------------------------------------------------------
Debian Security Advisory DSA-044-1                   security@debian.org 
http://www.debian.org/security/                         Wichert Akkerman
March 13, 2001
------------------------------------------------------------------------


Package        : mailx
Problem type   : buffer overflow
Debian-specific: no

The mail program (a simple tool to read and send email) as
distributed with Debian GNU/Linux 2.2 has a buffer overflow in the
input parsing code. Since mail is installed setgid mail by default
this allowed local users to use it to gain access to mail group.

Since the mail code was never written to be secure fixing it
properly would mean a large rewrite. Instead of doing this we
decided to no longer install it setgid. This means that it can no
longer lock your mailbox properly on systems for which you need
group mail to write to the mailspool, but it will still work for
sending email.

This has been fixed in mailx version 8.1.1-10.1.5. If you have
suidmanager installed you can also make this manually with the
following command:

     suidregister /usr/bin/mail root root 0755


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/mailx_8.1.1-10.1.5.diff.gz
      MD5 checksum: bfc7cf2139819cb25750cddc4c939931
     http://security.debian.org/dists/stable/updates/main/source/mailx_8.1.1-10.1.5.dsc
      MD5 checksum: 564992494f775638eeae0bc3427c513a
     http://security.debian.org/dists/stable/updates/main/source/mailx_8.1.1.orig.tar.gz
      MD5 checksum: c779002cb043b57fd5198ec2032cacb0

  Alpha architecture:
     http://security.debian.org/dists/stable/updates/main/binary-alpha/mailx_8.1.1-10.1.5_alpha.deb
      MD5 checksum: 37edc09cfe3c96994dfeff42c42fe9b2

  ARM architecture:
     http://security.debian.org/dists/stable/updates/main/binary-arm/mailx_8.1.1-10.1.5_arm.deb
      MD5 checksum: 8c50598bb486d62ad312730083e674f1

  Intel ia32 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-i386/mailx_8.1.1-10.1.5_i386.deb
      MD5 checksum: 18d30b35676fa9887a626c46909c9d9d

  Motorola 680x0 architecture:
     http://security.debian.org/dists/stable/updates/main/binary-m68k/mailx_8.1.1-10.1.5_m68k.deb
      MD5 checksum: 86ef8e4cf85e1634096ba52ed1f10987

  PowerPC architecture:
     http://security.debian.org/dists/stable/updates/main/binary-powerpc/mailx_8.1.1-10.1.5_powerpc.deb
      MD5 checksum: 97ec939047cdb7025095701df840838e

  Sun Sparc architecture:
     http://security.debian.org/dists/stable/updates/main/binary-sparc/mailx_8.1.1-10.1.5_sparc.deb
      MD5 checksum: 7b22c952196f2e604558d4b12ef23932

  These files will be moved into
   ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon.

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
The Difference Between Wi-Fi Security Protocols: WPA2-AES vs WPA2-TKIP
Segmenting for security: Five steps to protect your network
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.