Visit our newest sister site!
Hundreds of free aircraft flight manuals
Civilian • Historical • Military • Declassified • FREE!


TUCoPS :: Linux :: Red Hat/Fedora :: m-046.txt

Red Hat ncurses Vulnerability (CIAC M-046)




             _________________________________________________________
                        U. S. Department of Energy
                     Computer Incident Advisory Center
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN

                        Red Hat "ncurses" Vulnerability
                           [Red Hat RHSA-2002:020-05]

February 26, 2002 23:00 GMT                                       Number M-046
______________________________________________________________________________
PROBLEM:       A problem has been found in ncurses version 5.0 that could 
               cause a buffer overflow. 
PLATFORM:      Red Hat Linux 7.0 - alpha, i386 
               Red Hat Linux 7.1 - alpha, i386 
               Red Hat Linux 7.2 - i386 
DAMAGE:        This vulnerability could be locally exploited if the library is 
               linked into a program that runs setuid or setgid, resulting in
               an upgrade of privileges up to and including root. 
SOLUTION:      Update ncurses4 compatability packages. 
______________________________________________________________________________
VULNERABILITY  The risk is MEDIUM. An individual would need a local account 
ASSESSMENT:    and damage depends on the context of script using the ncurses 
               libraries. 
______________________________________________________________________________
LINKS: 
 CIAC BULLETIN:      http://www.ciac.org/ciac/bulletins/m-046.shtml 
 ORIGINAL BULLETIN:  https://www.redhat.com/support/errata/RHSA-2002-020.html 
______________________________________________________________________________

[***** Start Red Hat RHSA-2002:020-05 *****]

---------------------------------------------------------------------
                   Red Hat, Inc. Red Hat Security Advisory

Synopsis:          Updated ncurses4 compat packages are available
Advisory ID:       RHSA-2002:020-05
Issue date:        2002-01-29
Updated on:        2002-02-19
Product:           Red Hat Linux
Keywords:          ncurses4 buffer overrun overflow ncurses5
Cross references:  
Obsoletes:         
---------------------------------------------------------------------

1. Topic:

Updated ncurses4 compatability packages which fix a potential security
problem are available.

2. Relevant releases/architectures:

Red Hat Linux 7.0 - alpha, i386

Red Hat Linux 7.1 - alpha, i386

Red Hat Linux 7.2 - i386

3. Problem description:

The ncurses library provides a terminal-independent method of screen
handling.

A problem has been found in ncurses version 5.0 that could cause a buffer
overflow.  This overflow could be locally exploited if the library is
linked into a program that runs setuid or setgid.

Red Hat Linux ships with a compatibility package 'ncurses4' that is
actually based on ncurses version 5.0 but has been made ABI compatible
with ncurses 4.

No programs that ship with Red Hat Linux are exploitable.  A program could
only be exploited if it uses the ncurses 4 compatiblity package and if it
is run setuid or setgid.

The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CAN-2002-0062 to this issue.  Thanks to Daniel
Jacobowitz at MontaVista Software for alerting us to this issue.

4. Solution:

Before applying this update, make sure all previously released errata 
relevant to your system have been applied. 
 
To update all RPMs for your particular architecture, run: 
 
rpm -Fvh [filenames] 
 
where [filenames] is a list of the RPMs you wish to upgrade.  Only those 
RPMs which are currently installed will be updated.  Those RPMs which are 
not installed but included in the list will not be updated.  Note that 
you 
can also use wildcards (*.rpm) if your current directory *only* contains 
the 
desired RPMs. 
 
Please note that this update is also available via Red Hat Network.  
Many 
people find this an easier way to apply updates.  To use Red Hat 
Network, 
launch the Red Hat Update Agent with the following command: 
 
up2date 
 
This will start an interactive process that will result in the 
appropriate 
RPMs being upgraded on your system.

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



6. RPMs required:

Red Hat Linux 7.0:

SRPMS:
ftp://updates.redhat.com/7.0/en/os/SRPMS/ncurses4-5.0-5.src.rpm

alpha:
ftp://updates.redhat.com/7.0/en/os/alpha/ncurses4-5.0-5.alpha.rpm

i386:
ftp://updates.redhat.com/7.0/en/os/i386/ncurses4-5.0-5.i386.rpm

Red Hat Linux 7.1:

SRPMS:
ftp://updates.redhat.com/7.1/en/os/SRPMS/ncurses4-5.0-5.src.rpm

alpha:
ftp://updates.redhat.com/7.1/en/os/alpha/ncurses4-5.0-5.alpha.rpm

i386:
ftp://updates.redhat.com/7.1/en/os/i386/ncurses4-5.0-5.i386.rpm

Red Hat Linux 7.2:

SRPMS:
ftp://updates.redhat.com/7.2/en/os/SRPMS/ncurses4-5.0-5.src.rpm

i386:
ftp://updates.redhat.com/7.2/en/os/i386/ncurses4-5.0-5.i386.rpm



7. Verification:

MD5 sum                          Package Name
--------------------------------------------------------------------------
53856e0c3219de2fcb4e56600b4eb3b9 7.0/en/os/SRPMS/ncurses4-5.0-5.src.rpm
b470c5cf9eaaa4710a09e114aced3f4d 7.0/en/os/alpha/ncurses4-5.0-5.alpha.rpm
b5ad8bc36c129534192e0dbce582f5ed 7.0/en/os/i386/ncurses4-5.0-5.i386.rpm
53856e0c3219de2fcb4e56600b4eb3b9 7.1/en/os/SRPMS/ncurses4-5.0-5.src.rpm
b470c5cf9eaaa4710a09e114aced3f4d 7.1/en/os/alpha/ncurses4-5.0-5.alpha.rpm
b5ad8bc36c129534192e0dbce582f5ed 7.1/en/os/i386/ncurses4-5.0-5.i386.rpm
53856e0c3219de2fcb4e56600b4eb3b9 7.2/en/os/SRPMS/ncurses4-5.0-5.src.rpm
b5ad8bc36c129534192e0dbce582f5ed 7.2/en/os/i386/ncurses4-5.0-5.i386.rpm
 

These packages are GPG signed by Red Hat, Inc. for security.  Our key
is available at:
    http://www.redhat.com/about/contact/pgpkey.html

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

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 <filename>

8. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0062


Copyright(c) 2000, 2001 Red Hat, Inc.


[***** End Red Hat RHSA-2002:020-05 *****]

_______________________________________________________________________________

CIAC wishes to acknowledge the contributions of Red Hat, Inc. for the 
information contained in this bulletin.
_______________________________________________________________________________


CIAC, the Computer Incident Advisory Center, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
National Laboratory in Livermore, California. CIAC is also a founding
member of FIRST, the Forum of Incident Response and Security Teams, a
global organization established to foster cooperation and coordination
among computer security teams worldwide.

CIAC services are available to DOE, DOE contractors, and the NIH. CIAC
can be contacted at:
    Voice:    +1 925-422-8193 (7x24)
    FAX:      +1 925-423-8002
    STU-III:  +1 925-423-2604
    E-mail:   ciac@ciac.org

Previous CIAC notices, anti-virus software, and other information are
available from the CIAC Computer Security Archive.

   World Wide Web:      http://www.ciac.org/
   Anonymous FTP:       ftp.ciac.org

PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing
communities receive CIAC bulletins.  If you are not part of these
communities, please contact your agency's response team to report
incidents. Your agency's team will coordinate with CIAC. The Forum of
Incident Response and Security Teams (FIRST) is a world-wide
organization. A list of FIRST member organizations and their
constituencies can be obtained via WWW at http://www.first.org/.

This document was prepared as an account of work sponsored by an
agency of the United States Government. Neither the United States
Government nor the University of California nor any of their
employees, makes any warranty, express or implied, or assumes any
legal liability or responsibility for the accuracy, completeness, or
usefulness of any information, apparatus, product, or process
disclosed, or represents that its use would not infringe privately
owned rights. Reference herein to any specific commercial products,
process, or service by trade name, trademark, manufacturer, or
otherwise, does not necessarily constitute or imply its endorsement,
recommendation or favoring by the United States Government or the
University of California. The views and opinions of authors expressed
herein do not necessarily state or reflect those of the United States
Government or the University of California, and shall not be used for
advertising or product endorsement purposes.

LAST 10 CIAC BULLETINS ISSUED (Previous bulletins available from CIAC)

M-035: Red Hat Linux "rsync" Vulnerability
M-036: Microsoft Windows NT/2000 Trust Domain Vulnerability
M-037: Oracle 9iAS Multiple Buffer Overflows in the PL/SQL Module 
M-038: Cisco Secure Access Control Server NDS User Authentication Vulnerability
M-039: Microsoft Telnet Server Buffer Overflow Vulnerability
M-040: MS Exchange - Incorrectly Sets Remote Registry Permissions
M-041: Microsoft Internet Explorer Cumulative Patch
M-042: Multiple Vulnerabilities in Multiple Implementations of SNMP
M-043: Hewlett-Packard Buffer Overflow in Telnet Server Vulnerability
M-044: SQL Server Remote Data Source Function Contain Unchecked Buffers






TUCoPS is optimized to look best in Firefox® on a widescreen monitor (1440x900 or better).
Site design & layout copyright © 1986-2014 AOH