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

Sign up!
EnGarde Community
What is the most important Linux security technology?
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Latest Newsletters
Linux Advisory Watch: March 27th, 2015
Linux Security Week: March 23rd, 2015
LinuxSecurity Newsletters
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

Redhat: 'LPRng' vulnerability Print E-mail
User Rating:      How can I rate this item?
Posted by Team   
RedHat Linux LPRng has a string format bug in the use_syslog function which could lead to root compromise.

                   Red Hat, Inc. Security Advisory

Synopsis:          LPRng contains a critical string format bug
Advisory ID:       RHSA-2000:065-04
Issue date:        2000-09-26
Updated on:        2000-10-04
Product:           Red Hat Linux
Keywords:          LPRng security lpd printing lpr syslog
Cross references:  N/A

1. Topic:

LPRng has a string format bug in the use_syslog function which could lead
to root compromise.

2. Relevant releases/architectures:

Red Hat Linux 7.0 - i386

3. Problem description:

LPRng has a string format bug in the use_syslog function.  This function
returns user input in a string that is passed to the syslog() function as
the format string.  It is possible to corrupt the print daemon's execution
with unexpected format specifiers, thus gaining root access to the
computer.  The vulnerability is theoretically exploitable both locally and

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

5. Bug IDs fixed  (http://bugzilla.Red for more info):

17756 - Critical security hole in LPRng, remote root

6. RPMs required:

Red Hat Linux 7.0:



7. Verification:

MD5 sum                           Package Name
c1fc795122b067dd9549aceb75bf5694  7.0/SRPMS/LPRng-3.6.24-2.src.rpm
05251e71ae5f2d2fdbc6611eea6f8651  7.0/i386/LPRng-3.6.24-2.i386.rpm

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:

You can verify each package with the following command:
    rpm --checksig  

If you only wish to verify that each package has not been corrupted or
tampered with, examine only the md5sum with the following command:
    rpm --checksig --nogpg 

8. References:

Originally reported to bugtraq by Chris Evans <> on
25 Sep, 2000.

Copyright(c) 2000 Red Hat, Inc.

< Prev   Next >


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
FBI Quietly Removes Recommendation To Encrypt Your Phone
And the prize for LEAST SECURE BROWSER goes to ... Chrome!
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 2015 Guardian Digital, Inc. All rights reserved.